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Old 12-03-21, 05:04 PM
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Unhappy Poor system performance - Running out of ideas

Hello All

I'm looking for some hive mind ideas into some performance issues we're having with one of our systems. I'm running out of ideas!

System specs CPU- Z https://valid.x86.fr/n2lv2h
GPU-Z- https://www.techpowerup.com/gpuz/details/53w52


Benchmarks are giving disappointing results:

Timespy - https://www.3dmark.com/3dm/59433200

Heaven -
FPS:
276.1
Score:
6954
Min FPS:
9.7
Max FPS:
531.8
System
Platform:
Windows NT 6.2 (build 9200) 64bit
CPU model:
AMD Ryzen Threadripper 3970X 32-Core Processor (3693MHz) x32
GPU model:
NVIDIA GeForce RTX 3080 27.21.14.6172 (4095M x1
Settings
Render:
Direct3D11
Mode:
2560x1440 fullscreen
Preset
Custom
Quality
High
Tessellation: Disabled


Novabench:
CPU Score
5333
Float Ops: 2943738880
Integer Ops: 14226331328
Hash Ops: 1745532

RAM Score - 128GB
418
RAM Speed: 33123 MB/s


GPU Score
1134
Direct3D11: 194 FPS
OpenCL: 28106 GFLOPS

Disk Score
237
Write Speed: 1980 MB/s
Read Speed: 2000 MB/s


PC Mark - https://www.3dmark.com/pcm10/59437461


The system is set to DOCP. I've swapped the graphics card with another working system, same results. All drivers up to date, latest bios.

I didn't design this system and I know the memory speed is less than ideal for it -but would that be causing such a performance bottleneck?


Thanks
Jim

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Old 12-03-21, 05:18 PM
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See if the CPU lines up with Cinebench. If it does? then you are having a bottle neck caused by the Nvidia drivers.

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Old 12-03-21, 06:30 PM
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Cinebench score - 43431


Thanks
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Old 12-03-21, 08:52 PM
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I'm not at the 3950x rig to test that for you. However, it seems Nvidia cards will bottleneck really badly on CPUs lower down the stack than the 5000 series and latest Intels.

IE - Ampere has all of the issues AMD had with GCN. Unless the CPU is wickedly fast on a few cores (like closing in on 5ghz with the latest IPC) then your gaming will suffer badly. Like, the 3090 gets matched by the 5700xt if you don't feed it tons of IPC.

I can see the RAM bringing things down a bit, but dang man not that much. I "only" have 2666mhz in one of my 1920X TR rigs and it runs really nice with a 2070 Super.
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