Corsair Vengeance DDR5-6800 2x16GB vs Patriot Viper Venom DDR5-6400 2x16GB
On true latency Patriot Viper Venom DDR5-6400 2x16GB comes out ahead: 10.00 ns, where Corsair Vengeance DDR5-6800 2x16GB takes 11.77 ns. On top of the latency, Patriot Viper Venom DDR5-6400 2x16GB carries the lower tracked price, so both measured axes point the same way.
| Specification | CorsairVengeance DDR5-6800 2x16GB | PatriotViper Venom DDR5-6400 2x16GB |
|---|---|---|
| Capacity (GB) | 32 | 32 |
| Speed (MT/s) | 6800better | 6400 |
| 40 | 32 | |
| True latency (ns) | 11.77 | 10.00better |
| Current best price | $559.99at Newegg · captured 2026-09-13 | $449.99betterat Newegg · captured 2026-09-13 |
| Price per GB | $17.50 | $14.06better |
Corsair Vengeance DDR5-6800 2x16GB vs Patriot Viper Venom DDR5-6400 2x16GB in detail
True latency
Patriot Viper Venom DDR5-6400 2x16GB is the lower-latency kit at 10.00 ns against 11.77 ns for Corsair Vengeance DDR5-6800 2x16GB, 1.76 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. Corsair Vengeance DDR5-6800 2x16GB runs 6800 MT/s at CL40; Patriot Viper Venom DDR5-6400 2x16GB runs 6400 MT/s at CL32.
Transfer rate
Corsair Vengeance DDR5-6800 2x16GB carries the higher rating, 6800 MT/s to 6400 MT/s for Patriot Viper Venom DDR5-6400 2x16GB — 54400 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
Corsair Vengeance DDR5-6800 2x16GB is tracked at $559.99, or $17.50 per gigabyte; Patriot Viper Venom DDR5-6400 2x16GB at $449.99, or $14.06. At the same 32GB, that puts Patriot Viper Venom DDR5-6400 2x16GB $110.00 less than Corsair Vengeance DDR5-6800 2x16GB.
Kit layout
Corsair Vengeance DDR5-6800 2x16GB ships as 2 × 16GB and Patriot Viper Venom DDR5-6400 2x16GB 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: Corsair Vengeance DDR5-6800 2x16GB is published with no RGB lighting, and Patriot Viper Venom DDR5-6400 2x16GB is published with no RGB lighting. On the full timing tuple — the numbers after CAS — Corsair Vengeance DDR5-6800 2x16GB publishes none, and Patriot Viper Venom DDR5-6400 2x16GB is 32-40-40-84.
Which to buy
Patriot Viper Venom DDR5-6400 2x16GB leads Corsair Vengeance DDR5-6800 2x16GB on both of the axes this page measures: the lower true latency, 10.00 ns against 11.77 ns, and the lower price of the two at what this site has tracked.
Common questions about this pair
- Is Corsair Vengeance DDR5-6800 2x16GB faster than Patriot Viper Venom DDR5-6400 2x16GB?
- Yes, on true latency: 10.00 ns for Patriot Viper Venom DDR5-6400 2x16GB against 11.77 ns for Corsair Vengeance DDR5-6800 2x16GB. Corsair Vengeance DDR5-6800 2x16GB runs 6800 MT/s at CL40 and Patriot Viper Venom DDR5-6400 2x16GB runs 6400 MT/s at CL32, and the CAS numbers alone will not settle it — they count clock cycles, not time.
- Which one costs less?
- Patriot Viper Venom DDR5-6400 2x16GB, tracked at $449.99 against $559.99: $110.00 between them at the same 32GB.
- Which of these two should I buy?
- Patriot Viper Venom DDR5-6400 2x16GB leads Corsair Vengeance DDR5-6800 2x16GB on both of the axes this page measures: the lower true latency, 10.00 ns against 11.77 ns, and the lower price of the two at what this site has tracked.