Question My results with Ryzen 7800X3D CPU and Assassin X 120 R Digital Cooler ?

[brad1138]

I just built a new PC:
CPU: 7800X3D
CPU cooler: Thermalright Assassin X 120 R
Motherboard: ASUS B650E Max Gaming WiFi W
Ram: Crucial Pro Overclocking 32GB (2 x 16GB) DDR5 6400
SSD/HDD: 1 TB WD_Black 850 (OS) / 2 TB Crucial T500 (Games)
GPU: ASUS RX 9070 XT OC
PSU: EVGA 850 Gold
Chassis: GAMEMAX 2x140mm intake, 1x120mm exhaust.
OS: Win 11
Monitor: LG Ultragear 32" QHD 165 Hz.

At 1st I was worried my cooler wasn't sufficient, but after everything settled in, it is working quite well. I ran Cinebench and CPU Mark, it peaked under 80C.

I have seen a lot of posts saying the 7800X3D needs a bigger cooler if not water cooling. Not necessarily I guess.

https://imgur.com/a/ZZ9yQ9N

View: https://imgur.com/a/ZZ9yQ9N

https://imgur.com/a/ZrmvsK8

View: https://imgur.com/a/ZrmvsK8

 

[Lutfij]

If you haven't, perhaps try and undervolting the processor;

View: https://www.youtube.com/watch?v=FaOYYHNGlLs

and GPU and you should see lower temps.

 

[brad1138]

If you haven't, perhaps try and undervolting the processor;

View: https://www.youtube.com/watch?v=FaOYYHNGlLs

and GPU and you should see lower temps.

I tried that a little bit with the CPU and I it didn't make a difference. But I will try more.

 

[brad1138]

I tried it again, and still basically the same results. I set it to -30.

It did score 1119 vs 1091 on CB 2024, which is something, but could also just be the normal variance you get from test to test. Maybe I am doing something wrong, but I don't think so.

https://imgur.com/a/NF9BQwH

View: https://imgur.com/a/NF9BQwH

 

[CountMike]

What core frequencies is it hitting under high loads ? Benchmark programs give variable results but are not definitive proof of performance. Only frequency can tell you if CPU is reaching full potential or not. Benchmark programs are only useful to compare "Before and after" changes results.

 

[brad1138]

What core frequencies is it hitting under high loads ? Benchmark programs give variable results but are not definitive proof of performance. Only frequency can tell you if CPU is reaching full potential or not. Benchmark programs are only useful to compare "Before and after" changes results.

Thanks.

I had more time and watched the video fully through again. I adjusted all 3 settings he recommended;

I chose these values, and it was fully stable.

Curve Optimizer: -30

PTTL: 80C (Thermal limit)

PPTL: 80W (Wattage limit)

Enabling CO gave me about 3% performance boost on Cinebench 2024 and 2% on CPU Mark. (I ran the test 3 times at each setting, and took the average.) Enabling PTTL at 80C didn't do too much, performance stayed the same, temp dropped a degree or so. When I enabled PPTL of 80W, the max temps dropped about 8C on Cinebench and 3C on CPU Mark, and performance held the same.

The CPU frequency change was interesting. With "optimal defaults" loaded from bios (and XMP enabled), the CPU peaked at just over 4,800 in Cinebench. With CPU Mark, the freq would jump around a lot, but commonly would peak out around 4,950. In Cinebench, with CO enabled it would run between 4,950 and 5,000, but mostly around 4,960. The CPU freq didn't change when I enabled PTTL, the power dropped 1-2W. When I enabled PPTL, the peak frequency in Cinebench dropped down to 4,850-4,870 and watts dropped to about 82, but the performance levels held.

So I have better performance, lower watts and lower temps Nowhere near the 30C drop he got in the vid, but that may be just the different CPU type. In the end, the peak wattage dropped from about 93 to 82. It never got above 93 in any benchmark test. I am not sure what I would need to do to get it above 93, but I have no desire to even try.

👍

 

[brad1138]

This is nice to see

https://imgur.com/a/iEO9brf

View: https://imgur.com/a/iEO9brf