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Patriot Viper Xtreme 5 CKD DDR5

PatriotRAM kit

Viper Xtreme 5 CKD DDR5

Released September 2025.6Reviewfunkykit.com/reviews/memory/patriot-viper-xtreme-5-ckd-48gb-ddr5-9600-memory-kit-reviewRead 15 October 2026First review, with the note that the fastest Viper Xtreme 5 memory was not yet available worldwide and a Limited Availability tag. The kit was in stores in limited numbers in October 2025. Last checked 15 October 2026.

Memory type
DDR5
Speed
8,600, 9,200, 9,600MT/s
Capacity
48GB
CL
40, 44, 46

28 of 40 fields known.

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All specs

SourceCalculated

General

Series
Viper Xtreme 51Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Model numbers
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
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.
Announced
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
Available1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Predecessor
Not available
Successor
Not available
Launch price (US)
Not available
Launch price (EU)
Not available
Markets
Not available
Colours
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 type
DDR51Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Module type
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

Kit capacity
48GB1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Modules per kit
21Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Capacity per module
24GB1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Speed and timings

Rated speed
8,600, 9,200, 9,600MT/s1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
CAS latency (CL)
40, 44, 461Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Timings
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.
Voltage
1.45V1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026
Overclocking profiles
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)
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)
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)
1.1V1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026

Modules

Rank
Not available
DRAM chips
Not available
ECC
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 spreader
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 height
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

RGB lighting
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 sync
Not available
Software
Not available

Measured

AIDA64 memory test (measured)
Part numberCPUSpeed (MT/s)TimingsRead (MB/s)Write (MB/s)Copy (MB/s)Latency (ns)
VX548G9646CKIntel Core Ultra 7 265K9,60046-58-58-126115,42694,128103,42895.2
VX548G9646CKIntel Core Ultra 7 265K9,00042-58-58-141111,52889,47899,84896.5
VX548G9646CKIntel Core Ultra 7 265K9,000Not available128,020100,710110,74075.4
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)
Not available

Warranty

Manufacturer warranty (source market)
Not available
Lifetime warranty
Yes1Maker product pagepatriotmemory.com/products/xtreme5-ckd-ddr5-performance-ramRead 15 October 2026Specs tab and every sheet: Limited lifetime warranty.

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Variants

Each variant lists only what differs from the specs above.

Model numberGTINColoursKit capacityModules per kitCapacity per moduleRated speedCAS latency (CL)TimingsVoltageOverclocking profilesDefault speed (JEDEC)Default CAS latency (JEDEC)Default voltage (JEDEC)RankDRAM chips
VX548G8640CK4711378430738Silver48 GB224 GB8,600 MT/s4040-52-52-1381.45 VIntel XMP 3.06,400 MT/s521.1 VSingle rankNot available
VX548G9244CK4711378430745Silver48 GB224 GB9,200 MT/s4444-56-56-1471.45 VIntel XMP 3.06,400 MT/s521.1 VSingle rankNot available
VX548G9646CK4711378430752Silver48 GB224 GB9,600 MT/s4646-58-58-1261.45 VIntel XMP 3.06,400 MT/s521.1 VSingle rankSK hynix M-die

Sources

We read 8 sources for this RAM kit. The numbers match the markers in the sheet.

  1. Read 15 October 2026Backs 22 fields
  2. Read 15 October 2026Backs 3 fields
  3. Read 15 October 2026Backs 3 fields
  4. Read 15 October 2026Backs 5 fields
  5. Read 15 October 2026Backs 1 field
  6. Read 15 October 2026Backs 3 fields
  7. Read 15 October 2026Backs 1 field
  8. Read 15 October 2026Backs 1 field

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