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Corsair Vengeance DDR5-6800 2x16GB vs Crucial Pro DDR5-6400 Overclocking Memory 2x16GB

CorsairVengeance DDR5-6800 2x16GB32 GB · 6800 MT/s · 40 CL · 11.77 nsLeads on Speed
CrucialPro DDR5-6400 Overclocking Memory 2x16GB32 GB · 6400 MT/s · 32 CL · 10.00 nsLeads on True latency
In short

Crucial Pro DDR5-6400 Overclocking Memory 2x16GB has the lower true latency of the two at 10.00 ns, against 11.77 ns for Corsair Vengeance DDR5-6800 2x16GB. At least one of the two has no tracked price right now, so what follows compares specifications rather than cost.

SpecificationCorsairVengeance DDR5-6800 2x16GBCrucialPro DDR5-6400 Overclocking Memory 2x16GB
Capacity (GB)3232
Speed (MT/s)6800better6400
4032
True latency (ns)11.7710.00better
Current best price$559.99at Newegg · captured 2026-09-13
Price per GB$17.50

No tracked price for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB at the moment. Nothing has been captured for it that this page will stand behind, so its price cells stay empty rather than carrying a stale figure.

Corsair Vengeance DDR5-6800 2x16GB vs Crucial Pro DDR5-6400 Overclocking Memory 2x16GB in detail

True latency

Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is the lower-latency kit at 10.00 ns, against 11.77 ns for Corsair Vengeance DDR5-6800 2x16GB — a difference of 1.76 ns. That figure is what reconciles the two spec sheets: CAS latency counts clock cycles, so it only means something next to the clock it counts. Corsair Vengeance DDR5-6800 2x16GB runs 6800 MT/s at CL40; Crucial Pro DDR5-6400 Overclocking Memory 2x16GB runs 6400 MT/s at CL32.

Transfer rate

Corsair Vengeance DDR5-6800 2x16GB is rated 6800 MT/s against 6400 MT/s for Crucial Pro DDR5-6400 Overclocking Memory 2x16GB — 54400 MB/s per module, against 51200 MB/s. That is peak transfer rate, not access time: reaching a higher clock costs more cycles on each access, which is why the CAS numbers differ too, and why the true latency above is the figure that compares directly.

Kit layout

Corsair Vengeance DDR5-6800 2x16GB ships as 2 × 16GB and Crucial Pro DDR5-6400 Overclocking Memory 2x16GB ships as 2 × 16GB — the same number of sticks either way, so both populate a board's slots identically.

Lighting and timings

On the lighting question: Corsair Vengeance DDR5-6800 2x16GB does not have RGB lighting, and Crucial Pro DDR5-6400 Overclocking Memory 2x16GB does not have RGB lighting. On the full timing tuple, the numbers that follow CAS: Corsair Vengeance DDR5-6800 2x16GB does not publish one, and Crucial Pro DDR5-6400 Overclocking Memory 2x16GB runs 32-40-40-103.

Which to buy

The site holds no current price for at least one of these, so no buying answer follows: which is worth more turns on what each costs, and that figure is the one missing. On the specifications alone, Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is the quicker at 10.00 ns of true latency.

Common questions about this pair

Is Corsair Vengeance DDR5-6800 2x16GB faster than Crucial Pro DDR5-6400 Overclocking Memory 2x16GB?
Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is, on true latency: 10.00 ns against 11.77 ns. Corsair Vengeance DDR5-6800 2x16GB runs 6800 MT/s at CL40 and Crucial Pro DDR5-6400 Overclocking Memory 2x16GB runs 6400 MT/s at CL32; the CAS numbers alone do not settle it, because they count clock cycles rather than time.
Which of these two should I buy?
The site holds no current price for at least one of these, so no buying answer follows: which is worth more turns on what each costs, and that figure is the one missing. On the specifications alone, Crucial Pro DDR5-6400 Overclocking Memory 2x16GB is the quicker at 10.00 ns of true latency.
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