RAM kits / Compare

Lexar THOR Z RGB DDR5 vs Patriot Viper Xtreme 5 CKD DDR5

A

Product A: Lexar

THOR Z RGB DDR5

22 of 40 known

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B

Product B: Patriot

Viper Xtreme 5 CKD DDR5

28 of 40 known

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Every value links to where we found it.

Only differences

ALexar THOR Z RGB DDR5

BPatriot Viper Xtreme 5 CKD DDR5

General

4 of 9 differ

Series

THOR1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

Viper Xtreme 51Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

LD5U16G60C38LV-RGD, LD5U16G60C38EV-RGD, LD5U16G60C36LV-RGD, LD5U16G60C36EV-RGD1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026Part numbers listed for the Global region: LD5U16G60C38LV-RGD, LD5U16G60C36LV-RGD, LD5U16G60C36EV-RGD, LD5U16G60C38EV-RGD, all 16GBx2.

VX548G8640CK, VX548G9244CK, VX548G9646CK1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026The SKU Sheets tab groups 3 Non-RGB Kits (VX548G9646CK, VX548G9244CK, VX548G8640CK) and 2 RGB Kits (VX5R48G8640CK, VXR548G9244CK). The sheets and the QVL name the lines Viper Xtreme 5 CKD DDR5 and Viper Xtreme 5 RGB CKD DDR5. This product is the Non-RGB line. The RGB kits are not stored. All kits are 48GB (2x24GB).

GTIN / EAN

4895217918981, 48952179189985Spec databasebuildcores.com/products/RAM/bx7v79djr/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-BlackRead 14 October 2026EAN 4895217918981 for LD5U16G60C38LV-RGD.6Spec databasebuildcores.com/products/RAM/289uwk0yf/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-WhiteRead 14 October 2026EAN 4895217918998 for LD5U16G60C38EV-RGD.

4711378430738, 4711378430745, 47113784307522Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G8640_CK_sku_sheet_83d1f3d9d0.pdfRead 15 October 202613-digit barcode printed on the sheet of VX548G8640CK: 4711378430738.3Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9244_CK_sku_sheet_750f6e30b9.pdfRead 15 October 202613-digit barcode printed on the sheet of VX548G9244CK: 4711378430745.4Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9646_CK_sku_sheet_43a0ad294a.pdfRead 15 October 202613-digit barcode printed on the sheet of VX548G9646CK: 4711378430752.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

Not available

January 20258Press articlekitguru.net/components/memory/matthew-wilson/ces-2025-patriot-unleashes-ultra-fast-9600mt-s-memory-and-previews-lpcamm2Read 15 October 2026KitGuru CES 2025 report of 10 January 2025: Patriot showed Viper Xtreme 5 CKD memory at speeds up to 9600MT/s and capacities up to 48GB with a silver heatshield. No timings, price or availability were stated.

Status

Available2Press articlewccftech.com/lexar-launches-32-gb-thor-z-rgb-ddr5-memoryRead 14 October 2026Launch coverage only. Availability is confirmed by the October 2026 review below.4Reviewthepcenthusiast.com/lexar-thor-rgb-ddr5-6000-cl38-reviewRead 14 October 2026Review dated 3 October 2026 of the related THOR RGB kit. It states Amazon carries the THOR Z RGB DDR5-6000 CL38 for $479.99. Nothing else from that review is used, as it tested another product.

Available1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

Not available

Not available

ColoursiThe maker's own colour names

Black, White5Spec databasebuildcores.com/products/RAM/bx7v79djr/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-BlackRead 14 October 2026LD5U16G60C38LV-RGD is listed as Black.6Spec databasebuildcores.com/products/RAM/289uwk0yf/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-WhiteRead 14 October 2026LD5U16G60C38EV-RGD is listed as White.

Silver1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Specs tab: Color Silver. Sheets: Silver with Black Viper logo / Silver light bar.

Memory typeiMemory generation. A kit line sold in two generations is two products.

DDR51Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

DDR51Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Module typeiUDIMM is the standard desktop module and SO-DIMM the laptop module. CUDIMM and CSODIMM add a clock driver on the module. RDIMM is a registered server or workstation module. The clock driver decides. A kit with a clock driver on the module is CUDIMM even when the maker's spec table or sheet title says UDIMM.

UDIMM5Spec databasebuildcores.com/products/RAM/bx7v79djr/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-BlackRead 14 October 2026Listed as unbuffered, 288-pin DIMM.

CUDIMM1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026The QVL tab and the SKU sheet text say CUDIMM with an onboard clock driver. The Specs tab and the sheet title write UDIMM for the form factor. CUDIMM is stored because the module carries a clock driver.

Kit

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Kit capacityiTotal of all modules in one kit, e.g. 32 for 2 x 16 GB.

32GB1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

48GB1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Modules per kit

21Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

21Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Capacity per module

16GB1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

24GB1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Speed and timings

8 of 8 differ

Rated speediData rate of the kit's fastest XMP or EXPO profile, the speed on the label. A kit without a profile shows its JEDEC speed. A speed the maker writes in MHz, such as 6000MHz, is the data rate, so it is 6000 MT/s.

6,000MT/s1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

8,600, 9,200, 9,600MT/s1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

CAS latency (CL)iCAS latency at the rated speed, in clock cycles. Lower is quicker at the same speed.

36, 381Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

40, 44, 461Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

TimingsiPrimary timings at the rated speed in the order tCL-tRCD-tRP-tRAS, as the maker writes them. Timings of the profile on the label, which is profile 1 when the maker numbers them. Other profiles at the same speed go in the source note.

36-40-40-96, 38-48-48-961Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026Specs tab, CAS Latency & Voltage: 6000MT/s CL38-48-48-96 at 1.35V and 6000MT/s CL36-40-40-96 at 1.4V.

40-52-52-138, 44-56-56-147, 46-58-58-1262Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G8640_CK_sku_sheet_83d1f3d9d0.pdfRead 15 October 2026Profile 1 of the sheet is the speed and CL on the label: 40-52-52-138.3Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9244_CK_sku_sheet_750f6e30b9.pdfRead 15 October 2026Profile 1 of the sheet is the speed and CL on the label: 44-56-56-147.4Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9646_CK_sku_sheet_43a0ad294a.pdfRead 15 October 2026Profile 1 of the sheet is the speed and CL on the label: 46-58-58-126.

VoltageiDRAM voltage at the rated speed.

1.35, 1.4V1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026The page gives each voltage with its timing set. The C38 part numbers map to CL38 at 1.35V and the C36 part numbers to CL36 at 1.4V by the CL number in the part number.

1.45V1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Overclocking profilesiProfiles stored on the modules. EXPO ULL is AMD's EXPO Ultra Low Latency profile. None means the kit has no XMP or EXPO profile and runs from its default SPD settings. This includes a faster default speed with no profile, such as Kingston Plug N Play. Every DDR5 kit listed as Intel XMP is XMP 3.0. Every DDR4 kit listed as Intel XMP is XMP 2.0. The order follows the maker's list, profile 1 first.

Intel XMP 3.0, AMD EXPO1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026Standard: Intel XMP 3.0 and AMD EXPO.

Intel XMP 3.01Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Page: Support for Intel XMP 3.0. Sheets: XMP 3.0 overclocking supported.

Default speed (JEDEC)iSpeed the kit runs at without a profile. Makers call it SPD speed or default speed. The data rate in MT/s. A maker's SPD speed written in MHz, such as 5600MHz, is 5600 MT/s. A tool such as CPU-Z shows half the data rate, so DDR5-2400 in CPU-Z is 4800 MT/s.

Not available

6,400MT/s1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Specs tab: Base Speeds 6400, Base Timings 52, Base Voltage 1.1V. Each sheet repeats Base Frequency PC5-51200 (6400MT/s), Base Timings 52-52-52-103 and Base Voltage 1.1V.

Default CAS latency (JEDEC)iCAS latency at the default speed. The kit's own default timings from its datasheet count, even when they differ from the JEDEC standard bin, as on Kingston Plug N Play kits.

Not available

521Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026The sheet base timings 52-52-52-103 are stored. The CPU-Z SPD screenshot in the FunkyKit review shows CL 56 for JEDEC profile 14 (3200 MHz). The maker sheet wins.

Default voltage (JEDEC)iDRAM voltage at the default speed.

Not available

1.1V1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Modules

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RankiRanks on one module, from the maker's datasheet or a review. Single-sided or double-sided does not give the rank on DDR5, so it is not used to set it.

Not available

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DRAM chipsiChip maker and die as named by the maker or found in a review. The same part number can ship with other chips over time. Only when a photo or teardown shows the chips or the maker states them. The row names the tested part number.

Not available

Not available

ECCiModules sold as ECC, with error correction across the whole module. The on-die ECC inside every DDR5 chip does not count.

No5Spec databasebuildcores.com/products/RAM/bx7v79djr/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-BlackRead 14 October 2026Listed as Non-ECC.7Spec databasepcspecchart.com/pc_parts/ram/449Read 14 October 2026Described as non-ECC consumer memory.

No4Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9646_CK_sku_sheet_43a0ad294a.pdfRead 15 October 2026The sheet lists On-Die ECC only in a complete specifications list. That is the ECC inside every DDR5 chip. No sheet or page names ECC across the module, so ram_ecc is false.

Heat spreaderiA heat spreader or cover is fitted on the modules.

Yes3Press articlebasic-tutorials.com/news/lexar-thor-z-rgb-ddr5-ram-presented-stylish-design-meets-solid-performanceRead 14 October 2026Modules come with a slim heatspreader that bears the Z branding and integrates a large RGB bar.5Spec databasebuildcores.com/products/RAM/bx7v79djr/Lexar-Thor-Z-Series-RGB-DDR5-RAM-32GB-Kit-(2x16GB)-6000-MHz-BlackRead 14 October 2026

Yes1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Sheet: aluminum heat spreader. The black anodized aluminum heatshield has a silver light bar.

Module heightiHeight of one module from the bottom edge of the contacts to the top, with the heat spreader and light bar as sold. It decides the clearance under large CPU air coolers. This is the vertical height standing in the slot, not the board thickness. Makers write L x W x H, and some call the standing height W. Use the middle number of the three. A size with only two numbers gives length and height, so the smaller is the height. The longest is the module length and the smallest the thickness.

Not available

44mm1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Specs tab: Dimensions 0.6 cm (L) x 13.5 cm (W) x 4.4 cm (H). The middle number is the 44 mm standing height. The sheets give 1.73 in for the same value.

Lighting and software

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RGB lightingiLighting the user can set.

Yes3Press articlebasic-tutorials.com/news/lexar-thor-z-rgb-ddr5-ram-presented-stylish-design-meets-solid-performanceRead 14 October 2026

No1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026The SKU Sheets tab groups these kits as Non-RGB Kits. The page text about RGB lighting covers the RGB line on the same page. The FunkyKit review sample has no RGB illumination.

Lighting synciMotherboard and app lighting ecosystems the maker lists, as a short name without a version: ASUS Aura Sync, MSI Mystic Light, Gigabyte RGB Fusion, ASRock Polychrome Sync, CORSAIR iCUE. When the maker names only motherboard brands for lighting control, each brand is written as its system, such as ASUS Aura Sync for ASUS.

ASUS Aura Sync, MSI Mystic Light, Gigabyte RGB Fusion, ASRock Polychrome Sync2Press articlewccftech.com/lexar-launches-32-gb-thor-z-rgb-ddr5-memoryRead 14 October 2026Lighting can be customized with ASRock Polychrome SYNC, ASUS AURA SYNC, GIGABYTE RGB FUSION 2.0 and MSI Mystic Light SYNC. Stored in the short form without version.3Press articlebasic-tutorials.com/news/lexar-thor-z-rgb-ddr5-ram-presented-stylish-design-meets-solid-performanceRead 14 October 2026Same four motherboard ecosystems as the Wccftech report, with the same names.

Not available

SoftwareiMaker's app for lighting or settings.

Lexar RGB Sync1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026Support FAQ on the page names the Lexar RGB Sync lighting control software.

Not available

Measured

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AIDA64 memory test (measured)iAIDA64 Cache and Memory Benchmark results from a reviewer, one row per tested kit and setting. Read, write and copy are in MB/s as AIDA64 prints them, where 1 MB is 1,048,576 bytes. Results depend on the CPU and board, so compare rows from the same CPU only. AIDA64 switches a result of 100 GB/s or more to GB/s, where 1 GB is 1024 MB, so 113.64 GB/s is stored as 116367 MB/s, rounded to a whole MB/s. The printed figure goes in the source note.

ALexar THOR Z RGB DDR5

Not available

BPatriot Viper Xtreme 5 CKD DDR5

Part number	CPU	Speed (MT/s)	Timings	Read (MB/s)	Write (MB/s)	Copy (MB/s)	Latency (ns)
VX548G9646CK	Intel Core Ultra 7 265K	9,600	46-58-58-126	115,426	94,128	103,428	95.2
VX548G9646CK	Intel Core Ultra 7 265K	9,000	42-58-58-141	111,528	89,478	99,848	96.5
VX548G9646CK	Intel Core Ultra 7 265K	9,000	Not available	128,020	100,710	110,740	75.4

Source6Reviewfunkykit.com/reviews/memory/patriot-viper-xtreme-5-ckd-48gb-ddr5-9600-memory-kit-reviewRead 15 October 2026AIDA64 Cache and Memory Benchmark v7.70 on an Intel Core Ultra 7 265K with an MSI MEG Z890 Unify-X, BIOS 1.A60 (from the AIDA64 screenshot), Colorful RTX 4080, dual channel. Values are printed on the review charts. Row 1 is XMP profile 1 at 9600 MT/s and row 2 is XMP profile 2 at 9000 MT/s, both on automatic settings in Gear 4. Row 3 is the reviewer's 9000 MT/s manual overclock in Gear 2 with tighter timings that the review does not state. A single AIDA64 screenshot of the 9600 XMP run in the review reads 115.71 GB/s read, 92847 MB/s write, 103.08 GB/s copy and 93.1 ns, so runs vary. The review lists XMP 2 as CL42-58-58 and the maker sheet as 42-56-56-144. The stored 42-58-58-141 is what the module SPD and the reviewer's timing screenshot show.

Overclock reached (measured)iHighest stable setting a reviewer reached with their sample. Other samples can reach less.

Not available

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Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

Not available

Lifetime warrantyiThe maker gives a limited lifetime warranty. A fixed term shows as the warranty in years instead.

Yes1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026Warranty: Lifetime limited warranty.

Yes1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Specs tab and every sheet: Limited lifetime warranty.

Links

Not compared

Product page

www.lexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-Memory1Maker product pagelexar.com/global/products/Lexar-THOR-Z-RGB-DDR5-Desktop-MemoryRead 14 October 2026

www.patriotmemory.com/products/xtreme5-ckd-ddr5-performance-ram1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Spec sheet

Not available

patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9646_CK_sku_sheet_43a0ad294a.pdf4Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/VX_548_G9646_CK_sku_sheet_43a0ad294a.pdfRead 15 October 2026SKU sheet of the 9600 MT/s kit VX548G9646CK, the fastest and best known SKU.

Manual

Not available

patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/Installation_guide_memory_28b4cfe5c6.pdf5Owner's manualpatriot-cms-media.sgp1.cdn.digitaloceanspaces.com/Installation_guide_memory_28b4cfe5c6.pdfRead 15 October 2026Installation guide of Patriot memory, linked on the product page Downloads tab. It covers installation and holds no model specs.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Both are also in the API. Back to all RAM kits.