SSDs / Compare
Acer Predator GM7 vs Sandisk Optimus GX PRO 850X
Product A: Acer
36 of 63 known
Change Acer Predator GM7
Product B: Sandisk
48 of 63 known
Change Sandisk Optimus GX PRO 850X
35 of 55 fields differ
- 20 different values
- 15 known for one only
- 10 the same
- 10 missing for both
Biggest differences
Each bar uses the scale of all 84 SSDs.
- Power while reading (claimed)Lower is betterA: 4.79WB: 7.5WAcer is 2.71 W lower.
- Random 4K read (claimed)A: 925,000IOPSB: 1,200,000IOPSSandisk is 275,000 IOPS higher.
- Power while writing (claimed)Lower is betterA: 5.67WB: 7WAcer is 1.33 W lower.
- Random 4K write (claimed)A: 974,000IOPSB: 1,100,000IOPSSandisk is 126,000 IOPS higher.
Weight
0 to 150 g
All 63 fields
Every value links to where we found it.


General
5 of 9 differ
Series
Not available
Model numbers
BL.9BWWR.117, BL.9BWWR.118, BL.9BWWR.119, BL.9BWWR.1204Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 2026Spec table lists BL.9BWWR.117, BL.9BWWR.118 and BL.9BWWR.119 for 512GB, 1TB and 2TB. The review says its sample box reads BL.9BWWR.118 and the other two are guesses from GM7000 naming12Retailer pageamazon.com/dp/B0C3ZJ8T6FRead 14 October 2026Amazon US title for the 1TB reads BL.9BWWR.118, M.2 2280, PCIe Gen 4 x4, NVMe 2.0, read speed up to 7400 MB/s13Retailer pageamazon.com/Acer-Predator-GM7-512GB-SSD/dp/B0CPN8CHV2Read 14 October 2026Amazon US title for the 512GB reads BL.9BWWR.117, read speed up to 7200 MB/s14Retailer pagehotukdeals.com/deals/acer-predator-gm7-2tb-ssd-m2-2280-pcie-gen4-x4-nvme-20-7200-mbs-hmbslc-for-laptop-desktop-ps5-bl9bwwr119-sold-by-biwin-tech-fba-4954597Read 14 October 2026Deal title for the 2TB sold by BIWIN Tech on Amazon UK reads BL9BWWR119, M.2 2280, PCIe Gen4 x4, NVMe 2.0, 7200 MB/s read, HMB and SLC cache15Retailer pageamazon.com/Predator-GM7-4TB-SSD-BL-9BWWR-120/dp/B0CHJG3ZSFRead 14 October 2026Amazon US title for the 4TB reads BL.9BWWR.120, read speed up to 7400 MB/s16Spec databasebuildcores.com/products/Storage/lq2i597md/Acer-Predator-GM7-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026Lists BL.9BWWR.119 for the 2TB17Retailer pageinnovainformatica.com/discos-ssd/acer-predator-gm7-m-2-1-tb-pci-express-4-0-nvme-bl-9bwwr-118.htmlRead 14 October 2026Lists BL.9BWWR.118 for the 1TB19Retailer pagepcbox.com/bl-9bwwr-120-disco-duro-ssd-4000gb-m-2--acer-gm7-7400mb-s-pci-express-4-0-nvme/pRead 14 October 2026Search result title for the Spanish listing reads BL.9BWWR.120, 4000GB, M.2, 7400MB/s, PCIe 4.0 NVMe. A direct fetch returned HTTP 403, so the page was not opened. The Amazon US title confirms the 4TB number
SDSP81100TAN-000E0, SDSP81100TAN, WDS100T2X0E, SDSP81200TAN-000E0, SDSP81200TAN, WDS200T2X0E, SDSP81400TAN-000E0, SDSP81400TAN, WDS400T2X0E, SDSP81800TAN-000E0, SDSP81800TAN, WDS800T2X0E, SDSP81100TAH-000E0, SDSP81100TAH, WDS100T2XHE, SDSP81200TAH-000E0, SDSP81200TAH, WDS200T2XHE, SDSP81400TAH-000E0, SDSP81400TAH, WDS400T2XHE, SDSP81800TAH-000E0, SDSP81800TAH, WDS800T2XHE1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026Bare drive models SDSP81100TAN, SDSP81200TAN, SDSP81400TAN and SDSP81800TAN2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 2026Heatsink models SDSP81100TAH, SDSP81200TAH, SDSP81400TAH and SDSP81800TAH3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026Earlier WD_BLACK SN850X model numbers: WDS100T2X0E, WDS200T2X0E, WDS400T2X0E, WDS800T2X0E (without heatsink) and WDS100T2XHE, WDS200T2XHE, WDS400T2XHE, WDS800T2XHE (with heatsink). Same hardware under the old name. Sandisk's own page lists the Optimus numbers4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026SKUs SDSP81100TAN-000E0, SDSP81200TAN-000E0, SDSP81400TAN-000E0, SDSP81800TAN-000E0 and SDSP81100TAH-000E0, SDSP81200TAH-000E0, SDSP81400TAH-000E0, SDSP81800TAH-000E0
GTIN / EAN
887184017433, 887184017440, 6955914619128, 887184017457, 6955914619135, 88718401746413Retailer pageamazon.com/Acer-Predator-GM7-512GB-SSD/dp/B0CPN8CHV2Read 14 October 2026A search summary of this listing gave UPC 887184017433 for the 512GB. The page text read here did not show the UPC. The number has a valid check digit and fits the sequence of the other capacities15Retailer pageamazon.com/Predator-GM7-4TB-SSD-BL-9BWWR-120/dp/B0CHJG3ZSFRead 14 October 2026A search summary of this listing gave UPC 887184017464 for the 4TB. The page text read here did not show the UPC. The number has a valid check digit and fits the sequence of the other capacities. No EAN was found for the 512GB and 4TB16Spec databasebuildcores.com/products/Storage/lq2i597md/Acer-Predator-GM7-2TB-SSD-M.2-2280-PCIe-4.0-x4-NVMeRead 14 October 2026Lists UPC 887184017457 and EAN 6955914619135 for the 2TB with part numbers BL.9BWWR.119 and GM7-2TB17Retailer pageinnovainformatica.com/discos-ssd/acer-predator-gm7-m-2-1-tb-pci-express-4-0-nvme-bl-9bwwr-118.htmlRead 14 October 2026Lists EAN 6955914619128 for the 1TB BL.9BWWR.11818Retailer pagesupermexdigital.mx/en/shop/887184017440-ssd-predator-acer-gm7-1tb-m-2-pcie4-0-bl-9bwwr-118-11m-de-garantia-24448Read 14 October 2026Mexican listing for the 1TB BL.9BWWR.118 with code 887184017440 in its address and title, which is the UPC form
619659231972, 619659231965, 619659231958, 619659231941, 619659232016, 619659232009, 619659231996, 6196592319894Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026UPC in the page data: 619659231972 (1TB), 619659231965 (2TB), 619659231958 (4TB), 619659231941 (8TB) without heatsink. 619659232016 (1TB), 619659232009 (2TB), 619659231996 (4TB), 619659231989 (8TB) with heatsink
Announced
Not available
Status
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$159.994Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 2026Review states expected pricing of $49.99 (512GB), $89.99 (1TB) and $159.99 (2TB). These are the expected launch prices at a US outlet. Tax treatment is not stated and the maker published no list price11Reviewstoragereview.com/review/predator-gm7-ssd-reviewRead 14 October 2026Conclusion says the drive goes for roughly $50 (512GB), $90 (1TB) and $160 (2TB), which agrees with the Tom's Hardware figures
$289.995Press articlestoragereview.com/news/western-digital-announces-new-wd_black-gaming-ssdsRead 14 October 2026Western Digital's release says 1TB, 2TB and 4TB start at $189.99 (U.S. MSRP). Launch-day coverage and the Tom's Hardware review table list $159.99 for 1TB, so the May figure is not stored6Press articlepcgamesn.com/wd/black-sn850x-release-priceRead 14 October 2026Launches at $159.99 for the starting model (1TB), US7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 2026Specifications table pricing, US, without and with heatsink: 1TB $159.99 / $179.99, 2TB $289.99 / $309.99, 4TB $699.99. Review text calls it the launch pricing and MSRP. 4TB had no heatsink version at launch9Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-championRead 14 October 2026Specifications table pricing for 8TB: $849.99 without and $899.99 with heatsink, US. Review published 16 October 202414Press articleguru3d.com/story/western-digital-releases-8tb-variant-of-wd-black-sn850x-ssd-atRead 14 October 20268TB launch coverage dated 16 July 2024: $849 without a heatsink (WDS800T2X0E) and $899 with a PS5-compatible heatsink (WDS800T2XHE). IT Home reports $849.99 and $50 more for the heatsink
Launch price (EU)
Not available
From €539.991Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 20262Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 20263Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 20264Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 20267Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 20269Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-championRead 14 October 202610Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-champion/2Read 14 October 202611Reviewkitguru.net/components/ssd-drives/simon-crisp/wd-black-sn850x-with-heatsink-2tb-ssd-review/all/1Read 14 October 202614Press articleguru3d.com/story/western-digital-releases-8tb-variant-of-wd-black-sn850x-ssd-atRead 14 October 202615Press articlechannelpartner.de/article/3902358/western-digital-verdoppelt-kapazitaet-seiner-gaming-ssds.htmlRead 14 October 2026
Markets
Not available
Not available
Colours
Not available
Not available
Form factor
M.2 22801Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Specification tab reads M.2 22802Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
M.2 22801Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026Form factor row reads M.2 2280-S3-M for 1TB and 2TB and M.2 2280-D5-M for 4TB and 8TB4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026Form Factor reads M.2 2280 S3-M for 1TB and 2TB and M.2 2280 D5-M for 4TB and 8TB
Capacity
512 GB, 1 TB, 2 TB, 4 TB1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Capacity row lists 512 GB, 1 TB, 2 TB and 4 TB. The spec sheet footnote says one gigabyte is one billion bytes, so decimal values are stored2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
1 TB, 2 TB, 4 TB, 8 TB1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 20261GB = 1 billion bytes and 1TB = 1 trillion bytes. Capacities 1TB, 2TB, 4TB and 8TB4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 20261TB, 2TB, 4TB, 8TB
Interface
1 of 5 differ
Interface
PCIe NVMe1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Interface row reads PCIe Gen 4.0 x 4, NVMe 2.0. Tom's Hardware and ServeTheHome read NVMe 1.4 from the box and CrystalDiskInfo, so the version is a doubt2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
PCIe generation
PCIe lanes
NVMe version
Detachable cable
Not available
Not available
Hardware
5 of 7 differ
Controller
Maxio MAP1602A4Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 2026Reads a four-channel, DRAM-less Maxio MAP1602A, also called MAP1602 or MAP1602-I, made on 12 nm. Review dated 17 January 2023, 1TB sample7Reviewbasic-tutorials.com/reviews/hardware-reviews/acer-predator-gm7Read 14 October 20262TB review names the Maxiotek MAP1602A8Reviewigorslab.de/acer-predator-gm7-1-tb-nvme-ssd-im-test-exotische-mittelklasse-in-hocheffizient-und-extra-kuehlRead 14 October 20261TB spec box reads Maxio MAP1602A with 4 NAND channels9Reviewservethehome.com/predator-gm7-1tb-pcie-gen4-nvme-ssd-reviewRead 14 October 2026Reads Maxio MAP1602. The reviewer says the Biwin contact would not name the flash but said it is not 232-layer11Reviewstoragereview.com/review/predator-gm7-ssd-reviewRead 14 October 2026Reads Maxio MAP1602 and 2400 MT/s YMTC Xtacking 3.0 3D NAND
Sandisk in-house7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 2026Table reads WD Proprietary. Text: updated version of the SN850 controller, still eight-channel. Maker names no controller9Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-championRead 14 October 2026Controller code A101-000292-B2 on the 8TB and 20-82-20035-V2 on the original. Review says SanDisk technology, an update with a higher bus rate11Reviewkitguru.net/components/ssd-drives/simon-crisp/wd-black-sn850x-with-heatsink-2tb-ssd-review/all/1Read 14 October 2026Review calls it an 8-channel Gen 4 WD controller, probably an updated version of the in-house G2 controller. Part code 20-82-20035-B213Reviewthessdreview.com/our-reviews/nvme/wd_black-sn850x-gen4-8tb-ssd-reviewRead 14 October 2026Review of the 8TB calls it a SanDisk in-house Gen 4 8-channel SSD controller
Flash type
Flash memory
YMTC TLC4Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 2026Spec table reads YMTC TLC. The text says the sample carries a revised YMTC 128-layer design and not the 232-layer flash. The Overclocking Page found different flash on its 4TB sample, so the flash can differ per unit and capacity6Measurementtheoverclockingpage.com/2024/10/26/review-ssd-acer-predator-gm7-4tb-the-most-efficient-4tb-ssd-we-tested-so-farRead 14 October 20264TB sample reads YMTC TLC EET1A X3-9070 on chips marked BWN0ATF1B1JCAD. The review says the Tom's Hardware sample carried different flash, so flash can differ per unit and capacity7Reviewbasic-tutorials.com/reviews/hardware-reviews/acer-predator-gm7Read 14 October 2026Spec box reads 3D NAND TLC from YMTC, Xtacking 2.0, 128 layers, 512 Gbit. Tom's Hardware calls its 1TB design a revised 128-layer YMTC and the Overclocking Page decodes the same die class, so the layer count agrees11Reviewstoragereview.com/review/predator-gm7-ssd-reviewRead 14 October 2026Reads YMTC 3D NAND. The review gives no layer count
Sandisk BiCS5 TLC7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 2026Table reads 112-Layer BiCS5 TLC for 1TB, 2TB and 4TB. Sandisk's datasheet names only BiCS TLC9Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-championRead 14 October 20268TB table row reads Kioxia 162-Layer TLC (BiCS6), with 112-layer BiCS5 on 1TB to 4TB. Decoded from the flash marking. The review says BiCS6 may reach the smaller capacities later
Flash layers
1284Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 20261TB sample, 128 layers. This is a review finding and not a maker claim6Measurementtheoverclockingpage.com/2024/10/26/review-ssd-acer-predator-gm7-4tb-the-most-efficient-4tb-ssd-we-tested-so-farRead 14 October 20264TB sample, 232 layers with 1Tb dies. The review decodes the part marking and says the Tom's Hardware sample carried a 128-layer 512Gb die7Reviewbasic-tutorials.com/reviews/hardware-reviews/acer-predator-gm7Read 14 October 20262TB sample, 128 layers
DRAM cache
None, uses host memory (HMB)1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Text says GM7 supports HMB (Host Memory Buffer) and is equipped with SLC Cache. No DRAM chip is named4Reviewtomshardware.com/reviews/acer-predator-gm7-ssd-reviewRead 14 October 2026Spec table reads N/A (HMB)7Reviewbasic-tutorials.com/reviews/hardware-reviews/acer-predator-gm7Read 14 October 2026Text says the drive has no DRAM cache and the controller does not support one8Reviewigorslab.de/acer-predator-gm7-1-tb-nvme-ssd-im-test-exotische-mittelklasse-in-hocheffizient-und-extra-kuehlRead 14 October 2026Spec box lists no DRAM cache9Reviewservethehome.com/predator-gm7-1tb-pcie-gen4-nvme-ssd-reviewRead 14 October 2026Reads there is no DRAM cache
DRAM1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026DRAM cache row reads Yes. The datasheet gives no size4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026DRAM Cache: Yes
DRAM cache size
Not available
2GB7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 20262TB sample: DRAM module D9XPG, a 16Gb DDR4 module from Micron with 16-bit width, 2GB of memory. Other capacities not stated11Reviewkitguru.net/components/ssd-drives/simon-crisp/wd-black-sn850x-with-heatsink-2tb-ssd-review/all/1Read 14 October 20262TB sample has a 2GB DDR4 cache chip
Component sides
Single-sided1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Dimensions row reads 80.0 x 22.0 x 2.20 mm (Single side), and the text calls it a single-sided PCB2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 20268Reviewigorslab.de/acer-predator-gm7-1-tb-nvme-ssd-im-test-exotische-mittelklasse-in-hocheffizient-und-extra-kuehlRead 14 October 2026The back of the PCB is empty
Single-sided1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026Module code in the form factor row: S means single-sided and D means double-sided. 1TB and 2TB are 2280-S3-M, 4TB and 8TB are 2280-D5-M4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026S3-M for 1TB and 2TB, D5-M for 4TB and 8TB7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 2026Review calls the drive single-sided (2TB bare sample) and says 1Tb dies were needed to keep the 4TB single-sided. Sandisk's module code reads D5-M (double-sided) for 4TB, which is stored9Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-championRead 14 October 2026Review says the 8TB and the 4TB are both double-sided
Performance
4 of 4 differ
Sequential read (claimed)
7,200MB/s1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Max sequential read per capacity: 7200 (512 GB), 7200 (1 TB), 7200 (2 TB) and 7400 (4 TB) MB/s. Test host and tool are not named. The base is the 2 TB model2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026Two-page spec sheet dated March 2026, table on page 2. Same per-capacity values as the product page. The page is an image PDF, so the values were read after OCR and a visual check
Sequential write (claimed)
6,300MB/s1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Max sequential write per capacity: 3800 (512 GB), 6300 (1 TB), 6300 (2 TB) and 6500 (4 TB) MB/s2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Random 4K read (claimed)
925,000IOPS1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Max random read per capacity: 968K, 990K, 925K and 950K IOPS. The 2 TB figure is below the 1 TB figure as published. Block size and queue depth are not stated2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Random 4K write (claimed)
974,000IOPS1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Max random write per capacity: 724K, 997K, 974K and 980K IOPS as published2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Endurance and reliability
2 of 3 differ
Endurance (TBW)
1,200TB1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Warranty row: 5-Year with 300, 600, 1200 and 2400 TBW. Footnote says 5 years or TBW, whichever comes first2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
MTBF or MTTF (claimed)
1,500,000h1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026MTBF row reads up to 1,500,000 hours. The spec sheet footnote says MTBF is Mean Time Between Failures from internal Telcordia stress testing2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026Row reads up to 1,500,000 hours
Operating temperature
Min0Max70°C1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 20260 to 70 C. The non-operating range of -40 to 85 C is not stored2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Power
4 of 6 differ
Power while reading (claimed)
4.79W1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Operating Power Consumption (Read): 3.58, 3.82, 4.79 and 4.61 W. The 4 TB figure is below the 2 TB figure as published2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Power while writing (claimed)
Max power consumption (claimed)
Not available
Not available
Average power in light use (claimed)
Not available
Not available
Idle power (claimed)
48mW1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Idle Power Consumption: 0.046 W (512 GB) and 0.048 W for the other capacities. The power state is not named. Footnote 5 of the spec sheet mentions MobileMark 2012 with DIPM, but no table row carries that footnote number2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
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Measured
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Sequential write (measured)
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Random 4K read at queue depth 1 (measured)
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Random 4K write at queue depth 1 (measured)
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Write cache size (measured)
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Write speed after the cache (measured)
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3DMark Storage Benchmark
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Highest temperature under load (measured)
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85°C8Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-black/3Read 14 October 20262TB, bare drive, tested without a heatsink or extra airflow. Writing the entire cache (15-minute Iometer sequential write) got the S.M.A.R.T. reported temperature into a throttling range between 78 and 85 C, so the top of the range is stored. Idle was 48 C. Intel Core i9-11900K, ASRock Z590 Taichi, Windows 10 Pro, drive prefilled to 50% and tested as a secondary device10Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-champion/2Read 14 October 20268TB, bare non-heatsink drive: maximum 68 C on the primary composite sensor, about 22 C ambient, active cooling unless noted. Intel Core i9-12900K, Asus ROG Maximus Z790 Hero, Windows 11 Pro, drive prefilled to 50%, tested as a secondary drive. Stored in the 8TB row
Idle power (measured)
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1,124mW8Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-black/3Read 14 October 20262TB, bare. Quarch HD Programmable Power Module, idle power with ASPM/LPM disabled: 1,124 mW with Game Mode off and 1,052 mW with Game Mode on. Game Mode off is stored. Value printed on the chart. The review also says the cache is almost 600 GB and the post-cache speed is below 2,000 MB/s on a chart, which are not stored as exact numbers10Reviewtomshardware.com/pc-components/ssds/wd-black-sn850x-8tb-ssd-review-the-no-compromise-8tb-champion/2Read 14 October 20268TB, Quarch idle power with ASPM/LPM disabled: 1,085 mW, printed on the chart. Stored in the 8TB row
Cooling and build
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Heatsink
Without heatsink1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026No heatsink version is listed8Reviewigorslab.de/acer-predator-gm7-1-tb-nvme-ssd-im-test-exotische-mittelklasse-in-hocheffizient-und-extra-kuehlRead 14 October 2026The review says Acer ships the bare SSD without a heatsink
Without heatsink, With heatsink1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026This datasheet covers the bare drives. Heatsink versions have their own datasheet2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 2026Datasheet title reads SANDISK Optimus GX PRO 850X with Heatsink3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026All capacities have an optional heatsink version
RGB lighting
Not available
Yes3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026Dashboard text: customize your RGB lighting (heatsink versions only). The Optimus datasheets do not mention RGB7Reviewtomshardware.com/reviews/wd-black-sn850x-ssd-review-back-in-blackRead 14 October 2026Optional heatsink with RGB for the 1TB and 2TB models
Dust and water rating
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Drop test height
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Security and software
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Software
Compatibility
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Platforms
Windows, PS51Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 2026Text says the drive fits desktop, laptop and PS5. The quick start guide lists Windows 7, 8.1, 10 and 11. The maker lists the bare drive for PS5 and does not mention a heatsink3Owner's manualpredatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-SSD-User-Manual-1.pdfRead 14 October 2026Quick start guide page 2, System Requirements row: Windows 7, Windows 8.1, Windows 10 and Windows 11
Windows, PS52Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 2026The heatsink text reads compatible with PS5 and PS5 Pro consoles. The PS5 line is for the heatsink models only, the bare drive is listed for Windows3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026System compatibility row reads Windows 10+ and PlayStation 5 (heatsink model only)4Maker product pagesandisk.com/products/ssd/internal-ssd/sandisk-optimus-gx-pro-850x-internal-nvme-ssdRead 14 October 2026Compatibility reads Windows 10+, PCIe 4.0 x4 interface and M.2 2280 port. The heatsink text reads compatible with PS5 and PS5 Pro
Dimensions and weight
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Dimensions
Length80Width22Height2.2mm(3.1 × 0.9 × 0.1 in)1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 202680.0 x 22.0 x 2.20 mm (L x W x H), single side2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
Length80Width22Height2.38mm(3.1 × 0.9 × 0.1 in)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026Bare drive, length 80 mm and width 22 mm for all capacities. Height 2.38 mm for 1TB and 2TB, 3.88 mm for 4TB and 8TB. Footnote 8: length and width vary by +/-0.15 mm. Base is the 2TB bare drive2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 2026Heatsink models, rounded: 80 x 23 x 8.90 mm for 1TB and 2TB, 80 x 24 x 10.31 mm for 4TB and 8TB. The WD_BLACK SN850X datasheet gives 23.40 and 24.46 mm widths, which are stored3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026Heatsink models: 80 +/-0.20 x 23.40 +/-0.40 x 8.90 +/-0.40 mm for 1TB and 2TB, 80 +/-0.20 x 24.46 +/-0.48 x 10.31 +/-0.50 mm for 4TB and 8TB. Bare drives 80 x 22 x 2.38 mm (1TB, 2TB) and 3.88 mm (4TB, 8TB)
Weight
7g(0.2 oz)1Maker product pagepredatorstorage.com/products/pcie-m-2-ssd/predator-gm7-ps5-gaming-ssdRead 14 October 20267 g plus or minus 1 g. The quick start guide says up to 10 g2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026Weight row reads 7 g plus or minus 1 g3Owner's manualpredatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-SSD-User-Manual-1.pdfRead 14 October 2026Page 2 gives a weight of up to 10 g, which is less exact than the spec sheet value of 7 g plus or minus 1 g, so the spec sheet value is stored
7.5g(0.3 oz)1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 20267.5 g for 1TB and 2TB and 8.6 g for 4TB and 8TB. Footnote 8: weight varies by +/-1 g2Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-heatsink-ssd.pdfRead 14 October 202624 g for 1TB and 2TB and 30.4 g for 4TB and 8TB, heatsink models3Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/wd-black-ssd/data-sheet-wd-black-sn850x-nvme-ssd.pdfRead 14 October 2026Heatsink models 24 g +/-3 g (1TB, 2TB) and 30.4 g +/-3 g (4TB, 8TB). Bare 7.5 g +/-1 g and 8.6 g +/-1 g
In the box
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In the box
SSD, SSD mounting screw, Installation guide, Warranty terms6Measurementtheoverclockingpage.com/2024/10/26/review-ssd-acer-predator-gm7-4tb-the-most-efficient-4tb-ssd-we-tested-so-farRead 14 October 2026Unboxing text: the SSD, an installation guide and warranty terms, plus an SSD mounting screw7Reviewbasic-tutorials.com/reviews/hardware-reviews/acer-predator-gm7Read 14 October 2026Text says the box contains the SSD and a screw for mounting it
Cables included
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Links
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Product page
Spec sheet
www.predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdf2Maker spec sheet (PDF)predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-Specifications.pdfRead 14 October 2026
documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdf1Maker spec sheet (PDF)documents.sandisk.com/content/dam/asset-library/en_us/assets/public/sandisk/product/internal-drives/sandisk-optimus-gx-pro/data-sheet-optimus-gx-pro-850x-internal-ssd.pdfRead 14 October 2026Optimus datasheet, product page link named SANDISK Optimus GX PRO 850X data sheet
Manual
www.predatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-SSD-User-Manual-1.pdf3Owner's manualpredatorstorage.com/wp-content/uploads/2026/03/Predator-GM7-SSD-User-Manual-1.pdfRead 14 October 2026Quick start guide in English, French, German, Spanish, Italian, Portuguese and Chinese. The maker calls the file the user manual
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EPREL registration number
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Warranty
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Manufacturer warranty (source market)















