Question DDR5-8200 boosts Star Citizen past 100 fps

[igor_kavinski]

Woah, that's some serious scaling over DDR5-6400.

I wonder what the Raptor Lake IMC ceiling is.

 

[A///]

I wonder what the Raptor Lake IMC ceiling is.

It's high unless you care about stability, then it's around low 7000 for a stable system. 6800 is a safe bet. This does in a way show us that ddr5 is still young and can be improved. You don't get a lot of performance from 6000 to 7800 and then it shoots off, it will also be game dependent. some games will see larger variances in per speed frames and some will not and some will respond to very high speeds like this.

 

[CakeMonster]

That scaling looks suspicious percentage wise, unless timings also improved while going up in frequency.

 

[igor_kavinski]

That scaling looks suspicious percentage wise, unless timings also improved while going up in frequency.

It does say "tuned". Others are XMP timings.

 

[coercitiv]

DDR4 4100 Boosts Star Citizen past 100 FPS



Conclusion? Less than 10% performance advantage from DDR5 when making apples-to-apples comparisons. The price premium of fast DDR5 - both memory and motherboard - is only worth it when building very high end systems where the cost of the CPU and especially the GPU will dilute the DDR5 tax and make it acceptable.

 

[A///]

XMP is a preset for easy clocking, tuning as I said before here or on the other forum topics is a lost art. According to that if he's 100% stable through weeks of intensive testing then he's pushing roughly 8.8 ns fw ltcy.

If I'm not wrong that's ddr4 3600c16 fw ltcy. for what it's worth if we can get down to 8.2 ns in the next year on any higher end kit we'll have surpassed the fastest ddr4 kits on sale a few years ago during 11th gen.

 

[A///]

DDR4 4100 Boosts Star Citizen past 100 FPS

View attachment 79288

Conclusion? Less than 10% performance advantage from DDR5 when making apples-to-apples comparisons. The price premium of fast DDR5 - both memory and motherboard - is only worth it when building very high end systems where the cost of the CPU and especially the GPU will dilute the DDR5 tax and make it acceptable.

DDR4 4100 Boosts Star Citizen past 100 FPS

View attachment 79288

Conclusion? Less than 10% performance advantage from DDR5 when making apples-to-apples comparisons. The price premium of fast DDR5 - both memory and motherboard - is only worth it when building very high end systems where the cost of the CPU and especially the GPU will dilute the DDR5 tax and make it acceptable.

For a 32 GB kit the prices are coming down. It's finding a die kits that clock well. There's some xpgs by adata that allegedly come in 7200 and clock to 8k without issue. They were announced in November but I haven't seen them yet yet people have them.