Crucial Pro DDR5-6400 Overclocking Memory 2x16GB vs Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38
9.27 ns of true latency for Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 against 10.00 ns for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB, so the first of those is the quicker to respond. On top of the latency, Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 carries the lower tracked price, so both measured axes point the same way.
| Specification | CrucialPro DDR5-6400 Overclocking Memory 2x16GB | PatriotViper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 |
|---|---|---|
| Capacity (GB) | 32 | 32 |
| Speed (MT/s) | 6400 | 8200better |
| 32 | 38 | |
| True latency (ns) | 10.00 | 9.27better |
| Current best price | £442.74at Amazon.co.uk · captured 2026-09-13 | £399.99betterat Amazon.co.uk · captured 2026-09-13 |
| Price per GB | £13.84 | £12.50better |
Crucial Pro DDR5-6400 Overclocking Memory 2x16GB vs Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 in detail
True latency
Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 is the lower-latency kit at 9.27 ns against 10.00 ns for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB, 0.73 ns between them. That is the figure that reconciles the two spec sheets: a CAS number counts cycles, and cycles mean nothing apart from the rate they are counted at. Crucial Pro DDR5-6400 Overclocking Memory 2x16GB runs 6400 MT/s at CL32; Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 runs 8200 MT/s at CL38.
Transfer rate
Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 carries the higher rating, 8200 MT/s to 6400 MT/s for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB — 65600 MB/s per module against 51200 MB/s. That is peak transfer rate, not access time: a higher clock is reached by counting more cycles for each access, which is why the CAS numbers differ too and why the true latency above is the directly comparable figure.
Price and tracked history
Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is tracked at £442.74, or £13.84 per gigabyte; Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 at £399.99, or £12.50. At the same 32GB, that puts Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 £42.75 less than Crucial Pro DDR5-6400 Overclocking Memory 2x16GB. Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38's £399.99 sits 20% under its own 90-day median.
Kit layout
Crucial Pro DDR5-6400 Overclocking Memory 2x16GB ships as 2 × 16GB and Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 ships as 2 × 16GB — the same number of sticks on both sides, so they populate a board's slots the same way.
Lighting and timings
On lighting: Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is published with no RGB lighting, and Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 is published with no RGB lighting. On the full timing tuple — the numbers after CAS — Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is 32-40-40-103, and Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 publishes none.
Which to buy
Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 leads Crucial Pro DDR5-6400 Overclocking Memory 2x16GB on both of the axes this page measures: the lower true latency, 9.27 ns against 10.00 ns, and the lower price of the two at what this site has tracked.
Common questions about this pair
- Is Crucial Pro DDR5-6400 Overclocking Memory 2x16GB faster than Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38?
- Yes, on true latency: 9.27 ns for Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 against 10.00 ns for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB. Crucial Pro DDR5-6400 Overclocking Memory 2x16GB runs 6400 MT/s at CL32 and Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 runs 8200 MT/s at CL38, and the CAS numbers alone will not settle it — they count clock cycles, not time.
- Which one costs less?
- Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38, tracked at £399.99 against £442.74: £42.75 between them at the same 32GB.
- Which of these two should I buy?
- Patriot Viper Xtreme 5 DDR5-8000 2x16GB 8200 CL38 leads Crucial Pro DDR5-6400 Overclocking Memory 2x16GB on both of the axes this page measures: the lower true latency, 9.27 ns against 10.00 ns, and the lower price of the two at what this site has tracked.