Corsair Vengeance RGB CUDIMM DDR5-8800 48 GB CL42

[ir_cow]

Corsair is once again pushing the boundaries of memory performance with the latest CUDIMM technology. This new Vengeance RGB kit boasts an impressive 8800 MT/s XMP profile, optimized to unlock the full potential of Intel's cutting-edge Z890 motherboards. Follow along as we test this memory and see how it stacks up to the competition!

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[bonehead123]

Crank it, skank it, thank it, you go Corsair !

if it actually works, that is

 

[bug]

Wth, 1.45V? That's DDR3 territory.

 

[bgx]

The 40% improvement in 5%low in baldur3 using Die2Die and Ring improvement is crazy!
still far from the 9800X3D but still impressive.

 

[dgianstefani]

Wth, 1.45V? That's DDR3 territory.

??? Completely normal voltage for both DDR4 and DDR5.

 

[gasolina]

Wth, 1.45V? That's DDR3 territory.

You know when ddr3 first came out they're 1.65v and can be daily use for 1.8-1.95v with fan over them.

 

[tfp]

Can you post the before and after screen shots for the memory tweaking between XMP "defaults" and the XMP plus tweaks? It's a large latency improvement before the bus updates. Also what is the settings that the ring and d2d updated to?

 

[docnorth]

@ir_cow I guess on page 1 capacity should show 2x24gb, not 2x16? Just nitpicking, thanks anyway.

 

[ir_cow]

Can you post the before and after screen shots for the memory tweaking between XMP "defaults" and the XMP plus tweaks?

You just want a screenshot of the default timings?

It's a large latency improvement before the bus updates. Also what is the settings that the ring and d2d updated to?

For this one it was 42X ring and 32X D2D. NGU had no improvements at all. I also observed that if you go higher in memory frequency the lower the overall multiplier for Ring and D2D is. For example at 9600 MT/s, I couldn't get passed 30x on the D2D without some unhealthy amount of voltage applied. Idk if this is normal, or just the motherboard i'm using.

Also this memory could run 9600 MT/s, but it wasn't really worth a mention in the overclocking section.

 

[tfp]

You just want a screenshot of the default timings?


For this one it was 42X ring and 32X D2D. NGU had no improvements at all. I also observed that if you go higher in memory frequency the lower the overall multiplier for Ring and D2D is. For example at 9600 MT/s, I couldn't get passed 30x on the D2D without some unhealthy amount of voltage applied. Idk if this is normal, or just the motherboard i'm using.

Yes please!

Did you have to increase voltages for ring and D2D? I know it's mileage varies but overclocking has gotten complicated.

 

[ir_cow]

Did you have to increase voltages for ring and D2D?

I did not. The Ring already had 1.3v applied from the SA rail (by default) and the D2D worked at VNNAON 0.75v. 34X D2D needed 0.90V so I just left it alone to show that you can still get good results without voiding warranties.

I know it's mileage varies but overclocking has gotten complicated.

It feels overly complicated at first, but it is really just new names and what voltages to go what is the learning curve.

 

[Austntok]

Im running 8600 CL38 2x24 cudimms on the same board in this review. Unify-x. My 285k has a pretty decent OC to the E cores, ring. NGU and D2D. Significantly increased gaming performance

 

[Dr. Dro]

It's such a shame CUDIMMs don't work well with the Z790 Apex...

Wth, 1.45V? That's DDR3 territory.

DDR5 voltages are "higher" than DDR4 (which was 1.2-1.35), but the way that the power is supplied and managed is different. 1.45-1.5 are well within acceptable range for DDR5 high frequency

 

[Gasaraki]

Not impressed. The timings are too loose.

 

[Austntok]

Not impressed. The timings are too loose.

I mean, 8800 CL42 isn't that horrible. Definitely not good at all. But I thought cudimms were supposed to be fast and have tight timings. Getting my 8600 CL42 cudimms to 38-49-49 was a pain on my Unify-X

 

[Dr. Dro]

Not impressed. The timings are too loose.

8800 at 42 is loose how?

I'm running 7600 at 36 here, if anything mine's actually a bit worse. It's a 6800 34 kit by default, so I'm considering myself fortunate as it is. It's a Vengeance (so, midrange) kit too. If this was a Dominator kit I might be inclined to agree, but... it's not.

 

[Gasaraki]

8800 at 42 is loose how?

I'm running 7600 at 36 here, if anything mine's actually a bit worse. It's a 6800 34 kit by default, so I'm considering myself fortunate as it is. It's a Vengeance (so, midrange) kit too. If this was a Dominator kit I might be inclined to agree, but... it's not.

42-54-54-141-195 are not that good in terms of timings.

Team Group has the same 8800MHz memory in 42-54-54-96

You can get CL40 if you drop to 8600MHz.

The speed is not everything, the timing has to be in line with the speed. That's why in the charts the 7600MHz memory is beating this kit because of better timings. I personally would get 8200MHz memory at 38-49-49-84