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Maximizing Ryzen iGPU Performance on 7850U (alien.top)

submitted 11 months ago by [email protected] to c/[email protected]

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Just installed my 7840U mainboard. 3D Mark Time Spy is getting around 1700, which is low for the 780m.

Running Unigine Valley I am getting 1500mhz core in Afterburner and Adrenalin saids that I am using 18w.

Is there anything I can try to get my time spy score up?

I've turned off Memory Integrity in Windows

I've done the BIOS setting that allocates RAM to the iGPU

Best Performance is selected

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[–] [email protected] 1 points 11 months ago (3 children)

My understanding is that the iGPU performance is heavily effected by RAM. Make sure you're using 5600Mhz RAM, make sure you're using both slots for increased bandwidth, and low latency (CAS 40) RAM will also improve performance.

[–] [email protected] 1 points 11 months ago (1 children)

I want to get the Crucial 32GB Kit DDR5-5600 CL46 (CT2K16G56C46S5) Ram. Is that CAS 40/low latency?

[–] [email protected] 1 points 11 months ago

No, that's CAS latency (CL) 46. I don't know if anybody has tested exactly how much performance difference that will make but it will be slightly worse

[–] [email protected] 1 points 11 months ago

Any benchmark numbers on CAS 40 vs 46?

[–] [email protected] 1 points 11 months ago

Well nothing expect 5600 seems to boot anyways. Its probably coming down to cas latency