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How well does a 4090 or 4080 perform on X99/5820K system?

For most use cases SSD on SATA experience will be very similar to the user as M.2, bottlenecks are not just drive speed. The few seconds saved is not material for most applications.

Anyway, bring on the 4090 benchmarks, I'd be interested to see Cyberpunk with everything maxed at 4k and RT On / Off, to see if CPU makes big difference or not.
 
QFT, old&slow cores make me think server CPUs, LOL.

Which is exactly what these old Core i7 CPUs are. They're the entry segment (Xeon E5-1600 v3/v4) Haswell/Broadwell LCC (low-core-count die) server CPUs with the clock multiplier unlocked, operating frequencies raised and sold as high-end client CPUs. That is why the high-end server processors from the E5-2600 and E5-4600 families work on the X79/X99 motherboards, they are the exact same Patsburg/Wellsburg platform, and the chipset is practically identical to the C602/C612 server counterpart.

For most use cases SSD on SATA experience will be very similar to the user as M.2, bottlenecks are not just drive speed. The few seconds saved is not material for most applications.

Anyway, bring on the 4090 benchmarks, I'd be interested to see Cyberpunk with everything maxed at 4k and RT On / Off, to see if CPU makes big difference or not.

For my part if I hadn't hoisted my 3090 onto my main rig (making its removal difficult at best), i'd have run a few benchmarks comparing my 18-core Haswell and my 5950X... it's a bloodbath in general, though there ARE some games where the experience between both is practically imperceptible (which to me, is amazing, but still warrants calling the old platform not viable for a GPU of this stature).
 
I've reassembled my X99 system with my 3090, and installed a fresh copy of Windows 11 22H2 on it. It was a last-minute decision so I did not run benchmarks on the 5950X before I packed it (it will be listed and hopefully sold soon), but I have run a few benchmarks on this system and I am open to requests as long as it is something I happen to own:

Specs (GPU is set to run at 1830 MHz flatlined with +800 on memory, Vulkan developer driver 527.86):

1674014946000.png


Before anything, I must stress that Windows 11 22H2 runs horrible on this processor/system, unlike the initial 21H2 release. It stutters and lags a LOT. There may be something there about Microsoft withdrawing formal support and blocking installs for earlier generation computers, because the experience is nothing short of rotten. However, it benchmarks fine and games behave normally as far as I can tell.

In Endwalker, the second scene where it shows a town and a library dips to the low teens in frame rate, something which the benchmark software fails to report.

Endwalker.png


Final Fantasy XV doesn't suffer from the same extreme slowdowns in specific scenes, but the frame rate average is noticeably lower than on a PC with a faster CPU and the same graphics card:

FFXV Hi.png


The same applies to Horizon, which was surprisingly the most playable of the games I've tested (DLSS and FSR were kept off):

HZD.png


Red Dead Redemption 2 was tested with the settings slider all the way towards Favor Quality, with DLSS and FSR disabled and no other custom settings. It was also pretty playable, though slowdowns to the 30s were common during scene switches (with a relatively fast recovery time).

RDR2 FQ 1080p.jpg



The low clock speeds of my processor are somewhat mitigated by its very large L3 cache and dual-IMC design, but it shows well the problem with using an older/slower CPU arch: the IPC just doesn't hold. This one benchmarks very close to what an FX-8350 usually does in single thread, the result is that whenever engines try to stream assets, you will always be experiencing a brief pause or blurry textures until things settle and the game continues to render as normal.
 
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So I just want to chime in (more opinions yay :p)
I just got a used MSI gaming X Trio 3090 for my x99 system (Asrock Extreme 4), upgraded from a gigabyte 1070. I run a Xeon E5 2689 V4, which is basically a slightly faster version of the i7 6950x. It's a 10 core 3.1 GHZ stock, 3.8GHZ boost. However I used to run the good old 5820k. Had that for 7 years :D Truly classic processor!
It def feels bottlenecked by the cpu (I'm using an old 16:10 Dell 1200p monitor currently), however I'm using the 3090 more for Blender and Adobe performance with gaming as a little icing.
The gaming hits 60fps in most stuff and it's a huge difference from that 1070!! HUGE HUGE. I'll upgrade to a nice AMD processor/UHD monitor eventually but I'm doing it piecemeal for now as I acquire funds. I think that is a perfectly reasonable option and the 90 series should have more longevity than the 70 or even 80 series.
 
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I went from a 3080/5820K to a 3080/12700K and the only diff was a increase in min frame rates, no noticeable advantage in anything else. I am a retired nano characterization lab director, no need for compute power. Game play and eye candy was unchanged at 1440P/144 Hz RT enabled or not.
 
@NoOneSpecific and @Dr. Dro
You can't overclock Xeons? 2500Mhz. seems like really low clock speed. Even my lousy 5820 (RIP) could get to 4.45Ghz.
Not many Xeons can be overclocked. From my brief, cursory lookup, it seems Xeons in the 1600 series up through v3 can be overclocked. I've heard of people hacking some to force the boost multiplier to max. But I don't know much about it tbh. I think Linus Tech Tips had some fun with those in past videos. One thing neat about my E5-2689 V4 is it can support up to 1.5 Terabytes of ECC RAM. I don't need that and I'm def not gonna buy that much... but that's cool :P
 
I went from a 3080/5820K to a 3080/12700K and the only diff was a increase in min frame rates, no noticeable advantage in anything else. I am a retired nano characterization lab director, no need for compute power. Game play and eye candy was unchanged at 1440P/144 Hz RT enabled or not.
That's more or less what to expect from a CPU upgrade most of the time
You can always lower GPU related settings to the minimum, and find out what your CPU can do in any title
 
I went from a 3080/5820K to a 3080/12700K and the only diff was a increase in min frame rates, no noticeable advantage in anything else. I am a retired nano characterization lab director, no need for compute power. Game play and eye candy was unchanged at 1440P/144 Hz RT enabled or not.
144 Hz isn't challenging for modern CPUs, 240 Hz+ is the new frontier.

1%/0.1% lows are exactly what you want a CPU upgrade to improve though, having min lows that are only 20 FPS below the monitor's max refresh rate is ideal.
 
Wait, 7950x3D review answers this nicely - these are the *minimums* not max or averages

My experience matches up fairly closely with these results, having had ryzen 1400 through 5800x on the same motherboard and GPU to play around with. My differences were only due to RAM and PBO tuning.

A 60Hz user doesnt really need a modern CPU, they just need enough cores to keep the engine happy (a 3+3 dual CCX CPU can perform worse than a plain 4 core)

1682127145396.png
1682127150096.png
 

XFX RX 7900 XTX 24GB BLACK EDITION​

Strengths:​

This card has brought life to my old pc. Have an intel 5820e, 64 mb 2133 ram, ssd drive. Had an xfx r9 390 8 gb card. This machine still was running well but i wanted to switch to 4k. The r9 in bg3 was pushing 35 fps but hitting over 100 c. I am almost hitting 140 fps without even putting this card on the oc option. And the card sits idle at 33c where the old one was about 55. So far this card has been the best. But for the 390 i paid 500, this one 1300 (canadian) so i hope it would be better

Weaknesses:​

None found yet. It is huge but i have a full tower. If any larger with the bracket, i would of had to take out some drive bays which i don't even use

Additional Comments:​

Overall, considering the rest of my pc is 8 years old, my computer has a new beginning. If i need to upgrade later, at least i have a gpu to build around it

Getting some great performance, more then i expected. I haven't even used the OC option yet. Been pretty amazing. My plan is to build later but my intro to good 4k is a not so cheap GPU
 
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What’s the gpu usage when playing BG3?
 
What’s the gpu usage when playing BG3?

Gpu is 58-70%
Cpu is 65-79% which i think isn't too bad considering. May spike with battles as i get further in the game is a possibility.

I am downloading cyberpunk just to see how it works. Might be just too much for my old pc to handle

Cyberpunk
Cpu: 72% high
Gpu: 98% high
Fps: 52
Low: 30.65
High: 73
This is max everything, im sure i can get better if needed but not bad at sll
 
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From the crypt! I'm upgrading my x99 5930k with a 4090 to a 5090.

I personally feel for 4k this will give me the hugest upgrade vs changing the mobo / cpu / ram and then have to lose my sata ports.

Then also the hassle of upgrading windows, etc.

4k with the 4090 was pretty spot on.
 
From the crypt! I'm upgrading my x99 5930k with a 4090 to a 5090.

I personally feel for 4k this will give me the hugest upgrade vs changing the mobo / cpu / ram and then have to lose my sata ports.

Then also the hassle of upgrading windows, etc.

4k with the 4090 was pretty spot on.
Isn't the uptick between the 4090 and 5090 like 18%?

Your going to buy a $2500-$3000 card to connect to a $3 or $400 rig? Yeah, not a wise choice buddy.

And you don't need to reinstall Windows when upgrading to new gear...

Do the right thing.
 
Isn't the uptick between the 4090 and 5090 like 18%?

Your going to buy a $2500-$3000 card to connect to a $3 or $400 rig? Yeah, not a wise choice buddy.

And you don't need to reinstall Windows when upgrading to new gear...

Do the right thing.
35%.

2-3* if in VR.
 
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