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Kingston FURY Impact DDR5 vs Patriot Signature Line DDR5

A

Product A: Kingston

FURY Impact DDR5

29 of 40 known

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B

Product B: Patriot

Signature Line DDR5

30 of 40 known

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Only differences

AKingston FURY Impact DDR5

BPatriot Signature Line DDR5

General

3 of 9 differ

Series

FURY Impact16Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026The release names the line Kingston FURY Impact DDR5 SODIMMs under the Kingston FURY brand.

Signature Line1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

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

KF556S40IBK2-64, KF556S40IBK2-32, KF556S40IB-32, KF556S40IB-16, KF564S38IBK2-32, KF564S38IB-16, KF560S38IBK2-32, KF560S38IB-16, KF548S38IBK2-64, KF548S38IBK2-32, KF548S38IBK2-16, KF548S38IB-32, KF548S38IB-16, KF548S38IB-82Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 202614 part numbers have a datasheet: 4800 MT/s CL38 (8, 16 and 32GB singles, 16GB, 32GB and 64GB kits), 5600 MT/s CL40 (16GB and 32GB singles, 32GB and 64GB kits), 6000 MT/s CL38 (16GB single, 32GB kit) and 6400 MT/s CL38 (16GB single, 32GB kit). No datasheet was found for 5200 MT/s, 24GB, 48GB or 96GB parts, and none are stored.

PSD58G480041, PSD58G520041, PSD58G520082, PSD58G560041, PSD58G560081, PSD58G560082, PSD516G480081, PSD516G48002, PSD516G520081, PSD516G56002, PSD516G560081, PSD516G5600K, PSD532G48002, PSD532G4800K, PSD532G52002, PSD532G56002, PSD532G5600K, PSD564G5602, PSD564G5600K1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026The page lists SO-DIMM and UDIMM parts. Only the 18 UDIMM parts with a sku sheet are stored here, plus PSD516G480081. The SO-DIMM parts end in S and are a different module type, so they are not stored. The page data holds PSD516G480081 as a UDIMM 16GB (1x16GB) 4800MT/s 40-40-40-77 1.1V part but the visible table omits it. Retailers list it, see below.24Retailer pagepccomponentes.com/memoria-ram-patriot-signature-line-psd516g480081-16gb-1x16gb-ddr5-4800mhz-cl40-udimm-negroRead 15 October 2026Retailer listing of PSD516G480081: 16GB single module, DDR5-4800 CL40, 1.1 V, 288-pin UDIMM, on-die ECC. It confirms the part is sold.

GTIN / EAN

0740617331646, 0740617331660, 0740617331653, 0740617331677, 0740617335743, 0740617335750, 0740617335767, 0740617326147, 0740617326154, 074061732617819Retailer pageamazon.com/dp/B0BRTJT5P2Read 15 October 2026Item details list UPC 740617331646 and model number KF556S40IBK2-64, written as a 13-digit GTIN with a leading zero.20Retailer pageamazon.com/dp/B0BRTJ4Q94Read 15 October 2026Item details list UPC 740617331660 and model number KF556S40IBK2-32, written as a 13-digit GTIN with a leading zero.21Retailer pageamazon.com/dp/B0BRTJZL5HRead 15 October 2026Item details list UPC 740617331653 and model number KF556S40IB-32, written as a 13-digit GTIN with a leading zero.22Retailer pageamazon.com/dp/B0BRTJ88B7Read 15 October 2026Item details list UPC 740617331677 and model number KF556S40IB-16, written as a 13-digit GTIN with a leading zero.23Retailer pageamazon.com/dp/B0C3J1GC17Read 15 October 2026Item details list UPC 740617335743 and model number KF564S38IBK2-32, written as a 13-digit GTIN with a leading zero.24Retailer pageamazon.com/dp/B0C3HTXDDBRead 15 October 2026Item details list UPC 740617335750 and model number KF564S38IB-16, written as a 13-digit GTIN with a leading zero.25Retailer pageamazon.com/dp/B0C3HS9JVQRead 15 October 2026Item details list UPC 740617335767 and model number KF560S38IBK2-32, written as a 13-digit GTIN with a leading zero.26Retailer pageamazon.com/dp/B09T8VVTXJRead 15 October 2026Item details list UPC 740617326147 and model number KF548S38IBK2-32, written as a 13-digit GTIN with a leading zero.27Retailer pageamazon.com/dp/B09T95TJ1MRead 15 October 2026Item details list UPC 740617326154 and model number KF548S38IB-16, written as a 13-digit GTIN with a leading zero.28Retailer pageamazon.com/dp/B09T9CBQ5VRead 15 October 2026Item details list UPC 740617326178 and model number KF548S38IB-8, written as a 13-digit GTIN with a leading zero.

0814914029176, 4711378422290, 4711378429275, 4711378422160, 4711378427752, 4711378427950, 0814914029206, 4711378422306, 4711378428230, 4711378422184, 4711378422177, 0814914029213, 0814914029121, 0814914029220, 4711378425017, 4711378422191, 4711378431353, 47113784250242Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026The barcode number printed on each UDIMM sheet. PSD516G480081 has no sheet and no GTIN is stored for it.

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

March 202216Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026Mighty Gadget posted the Kingston FURY press release on 2 March 2022 with its full text. It announces the release of Kingston FURY Impact DDR5 SODIMMs for laptops and small form factor machines. Stored with month precision because the Kingston page of the release could not be read.

1 November 202121Press articleguru3d.com/story/patriot-announces-signature-ddr5-memory-seriesRead 15 October 2026Guru3D story dated 2021-11-01 on Patriot's announcement of the Signature Line DDR5 series.

Status

Available21Retailer pageamazon.com/dp/B0BRTJZL5HRead 15 October 2026The listing of KF556S40IB-32 shows the buy box with Only 2 left in stock on 2026-10-15, sold by Amazon.com.

Available1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 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

Not available

Not available

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

DDR52Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Title: DDR5-5600 CL40 262-Pin SODIMM Kit.

DDR51Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 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.

SO-DIMM2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Every datasheet title says 262-Pin SODIMM. The press release calls the line SODIMMs.

UDIMM1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

Kit

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

8, 16, 32, 64GB2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Kit capacity from each datasheet title and Total kit capacity. Singles are 8GB, 16GB and 32GB and kits of two are 16GB, 32GB and 64GB.

8, 16, 32, 64GB1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

Modules per kit

1, 22Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Singles have one module, kits of two have two.

1, 21Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

Capacity per module

8, 16, 32GB2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Module size from each datasheet: 8GB, 16GB or 32GB.

8, 16, 32, 64GB1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

Speed and timings

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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.

4,800, 5,600, 6,000, 6,400MT/s2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The speed of the fastest profile. XMP Profile #1 on the 4800, 6000 and 6400 MT/s datasheets. The 5600 MT/s datasheets list only the Plug N Play default at 5600 MT/s.

4,800, 5,200, 5,600MT/s1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026The sheets and the page state one frequency per part. The kit has no profile, so it is also the JEDEC speed.

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

38, 402Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026CL of that profile: 38 on the 4800, 6000 and 6400 MT/s kits and 40 on the 5600 MT/s kits.

40, 42, 461Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 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.

40-40-40, 38-40-40, 38-38-382Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026tCL-tRCD-tRP of the profile on the label, three numbers as Kingston writes them: 38-38-38 at 4800 and 6000 MT/s, 40-40-40 at 5600 MT/s and 38-40-40 at 6400 MT/s. XMP profiles #2 and #3 of the 6000 and 6400 MT/s kits are 6000 CL38-38-38 at 1.35V, 5600 CL40-40-40 at 1.1V and 4800 CL38-38-38 at 1.1V.

40-40-40-77, 42-42-42-84, 46-46-46-90, 46-45-45-902Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026Timings are the default settings and are written 46-46-46-90 on this sheet. The 64GB single module sheet states 46-45-45-90. Other speeds are on their own sheets.

VoltageiDRAM voltage at the rated speed.

1.1, 1.35V2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 20261.1V on the 4800 and 5600 MT/s kits and 1.35V at XMP Profile #1 on the 6000 and 6400 MT/s kits.

1.1V1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 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, None (no XMP or EXPO)2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Datasheets of the 4800, 6000 and 6400 MT/s kits list XMP profiles and say the module supports Intel XMP 3.0. The 5600 MT/s datasheets list only a Plug N Play default and no XMP profile, so they are stored as None. Kingston retail listings and the press release say Intel XMP 3.0 certified for the line, which conflicts with the 5600 MT/s datasheets.

None (no XMP or EXPO)1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026No XMP or EXPO. The sheets and the page state only the default speed, timings and voltage. A Signature Line module runs at its default settings only.

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.

4,800, 5,600MT/s2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026Default row of each datasheet. The 4800 and 5600 MT/s kits default to their Plug N Play speed. The 6000 and 6400 MT/s kits default to JEDEC DDR5-4800 CL40-39-39 at 1.1V.

4,800, 5,200, 5,600MT/s1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

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.

38, 402Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026CL of the Default row: 38 on the 4800 kits, 40 on the 5600 kits and 40 on the 6000 and 6400 kits.

40, 42, 461Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

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

1.1V2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 20261.1V on every datasheet.

1.1V1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 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.

Single rank, Dual rank2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The description line of each datasheet gives the rank: 1Rx16 and 1Rx8 are single rank and 2Rx8 is dual rank.

Single rank, Dual rank1Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026Patriot publishes no rank. The sheets say Single-sided or Double-sided module and the page data gives a chip organisation per part (2Gx8 for 16GB and 32GB, 1Gx8 Half for the dual-sided 16GB, 1Gx16 or 1Gx8 Half for single-sided 8GB, 512x16 Half for dual-sided 8GB). Chip count times chip width gives one 64-bit rank for the single-sided parts and two ranks for the double-sided parts. Left out for the kits, which state no sides, and for the 64GB module, whose listed 2Gx8 organisation would need 32 chips.23Reviewigorslab.de/en/affordable-ddr5-lottery-with-potent-peak-performance-patriot-signature-line-ddr5-4800-modules-in-overclocking-tesRead 15 October 2026PSD516G480081: eight x8 ICs on one side, one 64-bit rank. The review calls the dual-sided 16GB part PSD516G48002.

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.

SK hynix A-die17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Review of 14 March 2024 of the 64GB (2 x 32GB) DDR5-5600 kit. The text says the tested kit uses Hynix A-die ICs. The CPU-Z SPD screenshot shows DRAM manufacturer SK Hynix and part number KF556S40-32. The line may ship with other chips over time.

SK hynix 16Gb M-die23Reviewigorslab.de/en/affordable-ddr5-lottery-with-potent-peak-performance-patriot-signature-line-ddr5-4800-modules-in-overclocking-tesRead 15 October 2026Page 1: the tested PSD516G480081 modules carry SK hynix 16 Gbit M-die. Page 2: SPD DRAM manufacturer ID 80AD (SK hynix), eight x8 ICs, four per 32-bit subchannel. igor'sLAB states the same part number is reportedly also sold with Micron Rev. A chips, so the chips can differ by batch.

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

No2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The datasheets describe 64-bit modules and list On-Die ECC only, so the modules are not ECC. On-die ECC does not count.

No2Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026Technology: DDR5 Non-ECC Unbuffered. On-die ECC only. Every UDIMM sheet states it.

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

No17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026The review says the memory has no heatsinks, since the size does not allow them and 1.10V does not need them.18Retailer pageldlc.com/en/product/PB00541355.htmlRead 15 October 2026Specification list of KF556S40IBK2-64 says no heatsink.

No22Press articlethepcenthusiast.com/patriot-signature-ddr5-memory-series-revealedRead 15 October 2026The article states the module does not come with any heatsink. The igor'sLAB review also states a black PCB and no heat sink.

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.

30mm2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026DEFAULT FEATURES lists Height 1.18 in (30mm) on all 14 datasheets. The launch press release gives 69.6mm x 30mm.

32mm2Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026Sheet lists the module as 0.2 cm (L) x 13.3 cm (W) x 3.2 cm (H), also 0.07 x 5.24 x 1.26 in. The middle value by size is 3.2 cm, which is the standing height. 0.2 cm is the thickness and 13.3 cm the length. Every UDIMM sheet states the same size.

Lighting and software

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RGB lightingiLighting the user can set.

No17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026The review says the memory has no RGB.18Retailer pageldlc.com/en/product/PB00541355.htmlRead 15 October 2026Specification list says no LED.

No22Press articlethepcenthusiast.com/patriot-signature-ddr5-memory-series-revealedRead 15 October 2026The sheets list no lighting and the modules are bare circuit boards with no heat spreader or light bar. The article mentions no RGB.

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.

Not available

Not available

SoftwareiMaker's app for lighting or settings.

Not available

Not available

Measured

2 of 2 differ

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.

AKingston FURY Impact DDR5

Part number	CPU	Speed (MT/s)	Timings	Read (MB/s)	Write (MB/s)	Copy (MB/s)	Latency (ns)
KF556S40IBK2-64	Intel Core i9-13900HX	4,800	Not available	71,896	70,284	71,148	98.2
KF556S40IBK2-64	Intel Core i9-13900HX	5,200	Not available	78,124	74,892	75,842	89.6
KF556S40IBK2-64	Intel Core i9-13900HX	5,600	40-40-40	86,369	80,969	83,327	79.9
KF556S40IBK2-64	Intel Core i9-13900HX	6,000	36-38-38-67	92,155	88,931	89,806	74.6

Source17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Four settings of the 64GB 5600 MT/s kit on an Intel Core i9-13900HX with a Minisforum AR900i board (BIOS RPFXI.1.01 shows in the screenshot), AIDA64 Cache and Memory Benchmark v7.00.6700. The values are printed on the review bar charts of read, write, copy in MB/s and latency in ns. The JEDEC rows are the kit run at 4800 MT/s CL40 and 5200 MT/s CL42, with timings beyond CL not printed. The 5600 MT/s row is the SPD Plug N Play profile CL40-40-40 at 1.10V. The 6000 MT/s row is the overclock described below, 36-38-38-67 at 1.10V as the AIDA64 and CPU-Z screenshot shows.

BPatriot Signature Line DDR5

Part number	CPU	Speed (MT/s)	Timings	Write (MB/s)	Copy (MB/s)	Latency (ns)
PSD516G480081	Intel Core i9-12900K	4,800	40-40-40-77	68,992	68,747	81.8
PSD516G480081	Intel Core i9-12900K	6,000	34-37-38-28	94,820	93,970	53.4
PSD516G480081	Intel Core i9-12900K	6,800	34-40-40-28	107,162	106,454	49.7
PSD516G480081	Intel Core i9-12900K	6,800	32-39-40-28	107,459	107,592	48.6

Source23Reviewigorslab.de/en/affordable-ddr5-lottery-with-potent-peak-performance-patriot-signature-line-ddr5-4800-modules-in-overclocking-tesRead 15 October 2026Test system: Intel Core i9-12900K at 5.1 GHz P-cores, E-cores off, cache 4.9 GHz, AVX-512 off, Asus ROG Maximus Z690 Apex, BIOS 0070, 2 x 16 GB PSD516G480081 in dual channel, AIDA64 Cache and Memory Benchmark v6.70.6000. Rows are the review's Write, Copy and Latency charts. The Read chart on page 4 is a repeat of the SuperPi chart on the site, so no read value is stored. The text says read passed 112000 MB/s at the best setting. Settings: 4800 JEDEC 40-40-40-77. 6000 34-37-38-28 at 1.2 V, no cooling. 6800 34-40-40-28 at 1.435 V with a 120 mm fan on the modules. 6800 32-39-40-28 at 1.5 V with the PMIC lock bypassed. Manual subtimings on the overclocked rows. Command rate 2T, Gear 2.

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

AKingston FURY Impact DDR5

Part number	CPU	Speed (MT/s)	Timings	Voltage (V)
KF556S40IBK2-64	Intel Core i9-13900HX	6,000	36-38-38-67	1.1

Source17Reviewfunkykit.com/reviews/memory/kingston-fury-impact-64gb-ddr5-5600-sodimm-memory-kit-reviewRead 15 October 2026Overclocking limit of the same sample on the same board was DDR5-6000 at CL36-38-38 and 1.10V. The review says the board reported unlocked voltage up to 1.35V but the actual voltage stayed near 1.10V. The text gives CL36-38-38 and the AIDA64 screenshot shows 36-38-38-67.

BPatriot Signature Line DDR5

Part number	CPU	Speed (MT/s)	Timings	Voltage (V)
PSD516G480081	Intel Core i9-12900K	6,800	32-39-40-28	1.5
PSD516G480081	Intel Core i9-12900K	6,800	34-40-40-28	1.435
PSD516G480081	Intel Core i9-12900K	6,000	34-37-38-28	1.2

Source23Reviewigorslab.de/en/affordable-ddr5-lottery-with-potent-peak-performance-patriot-signature-line-ddr5-4800-modules-in-overclocking-tesRead 15 October 2026Same test system. Stability by TestMem5 Extreme1 at the 6800 32-39-40-28 setting, 1 h 37 min 13 s, no errors, with active cooling and 1.5 V on VDD and VDDQ. The Renesas P8911Y PMIC is locked to 1.435 V on boards that cannot bypass it, which gives the 6800 34-40-40-28 row. The 6000 34-37-38-28 row is the passively cooled daily setting at 1.2 V, reaching 69 C in the stress test. Timings are tCL-tRCD-tRP-tRAS as shown by AIDA64.

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.

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

Yes16Press releasemightygadget.co.uk/kingston-launches-laptop-fury-impact-ddr5-sodimms-ramRead 15 October 2026The release says the modules are backed by a limited lifetime warranty.

Yes2Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026Limited Lifetime Warranty on every sheet.

Links

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Product page

www.kingston.com/unitedstates/us/memory/gaming/kingston-fury-impact-ddr5-memory1Maker product pagekingston.com/unitedstates/us/memory/gaming/kingston-fury-impact-ddr5-memoryRead 15 October 2026The Kingston pages answer automated requests with a Cloudflare challenge, so their content was not read. The link is the product page of the line. Kingston datasheet PDFs load, so the data comes from them.

www.patriotmemory.com/products/signature-line-ddr51Maker product pagepatriotmemory.com/products/signature-line-ddr5Read 15 October 2026

Spec sheet

www.kingston.com/datasheets/KF556S40IBK2-32.pdf2Maker spec sheet (PDF)kingston.com/datasheets/KF556S40IBK2-32.pdfRead 15 October 2026The datasheet URL pattern kingston.com/datasheets/<part number>.pdf works for all 14 part numbers stored. The link is the datasheet of the 32GB 5600 MT/s kit.

patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdf2Maker spec sheet (PDF)patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/PSD_516_G560081_sku_sheet_aa4e2becd2.pdfRead 15 October 2026

Manual

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patriot-cms-media.sgp1.cdn.digitaloceanspaces.com/Installation_guide_memory_28b4cfe5c6.pdf20Owner's manualpatriot-cms-media.sgp1.cdn.digitaloceanspaces.com/Installation_guide_memory_28b4cfe5c6.pdfRead 15 October 2026Patriot's generic memory installation guide for DDR to DDR5 UDIMM and SO-DIMM modules. It has no Signature Line specifications.

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.

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