Nvidia GeForce RTX 3080 & AMD Ryzen 7 2700 Benchmarks – Does the CPU bottleneck the GPU?

I was one of the small number of people that managed to buy an Nvidia GeForce RTX 3080 when it was launched last Thursday. After receiving an email off CCL Computers that I probably won’t get it, I luckily didn’t cancel the order, and they ended up delivering the Zotac GeForce RTX 3080 Trinity on Friday.

With me not being a rich YouTuber or a dedicated PC site, I have not got the latest hardware to benchmark this card on, nor do I have every generation of card that precedes this. However, I hope some people will find this useful when considering the RTX 3080, so they can have realistic expectations of performance.

Zotac Gaming GeForce RTX 3080 Trinity

Nvidia GeForce RTX 3080 & AMD Ryzen 7 2700 Benchmarks – Does the CPU bottleneck the GPU? 3

I am upgrading from a Zotac GTX 1070, and have been happy with the card since I bought it, Zotac was traditionally one of the more affordable brands, and they offer industry-leading 5-year warranty. So the Trinity was a logical choice.

Sadly, I had expected to pay £650 based on the prices on Overlockers, but the card launched at £700, and CCL charged even more at £729.99. So I was a bit disappointed by that, with how quickly sites became overrun I didn’t have time to find a more affordable option.

The Zotac Gaming GeForce RTX 3080 Trinity is a 3-fan GPU running at stock clocks with 2×8 power connectors. There is SPECTRA 2.0 RGB Lighting; there is a metal Frontplate and RGB LED Backplate

Active Fan Control with FREEZE Fan Stop for semi-passive functionality during low loads.

You can then monitor and overclock the card via the Zotac made FireStorm Utility.

Overall, it is a pretty standard 3-fan card running at stock frequencies. The main selling point is the 3+2 warranty, where you get 3 years as standard plus 2 if you register.

System Specification

Nvidia GeForce RTX 3080 & AMD Ryzen 7 2700 Benchmarks – Does the CPU bottleneck the GPU? 4
Old GTX 1060 vs RTX 3080

I am not one of these people the updates their PC each year, so my current specification is somewhat limiting for such a powerful GPU. I bought this GPU with the intention of it lasting several years, the GTX 1060 is 4-years old, and it is likely this will last a similar timeframe. I plan to upgrade the rest of my system with the launch of the Zen 3 Ryzen 4000 CPUs, budget dependant.

Yes, I have a ridiculous monitor compared to the rest of my PC. I fell In love with the C49RG90 when I reviewed it, then was offered a good deal on it, so impulsively bought it. I mainly bought it for the increased productivity it offered, rather than for gaming.

Benchmarks

All benchmarks are done with everything at stock. With my limited access to hardware, I have tried to compare my results to other users and websites online. I have tried to compare against the FE models as most AIB cards sent out to reviewers are the OC versions.

PCIe 3.0 Bandwidth

Embarrassingly, when I first did my benchmarks, I didn’t take into account all the PCIe slots that were in use due to me reviewing a 10GbE Nic, lots of Wi-Fi 6 devices, and an U.2 NVME drive.

So I had to redo all of them when I did the 3D Mark PCIe test and realised I only had 6.5GB/s bandwidth. Removing them allowed me to go up to the limit of PCIe 3.0 at around 13GB/s.

However, there was not a massive difference in results, everything went up, but many benchmarks didn’t significantly improve. Horizon New Dawn was one exception which increased by about 15 fps on average.

3D Mark

TimeSpy

Nvidia GeForce RTX 3080 & AMD Ryzen 7 2700 Benchmarks – Does the CPU bottleneck the GPU? 5

In TimeSpy, my system achieved a score of 14,151 with a graphics score of 16,999 and CPU score of 7,311.

  • OC3D: 16,090
  • KitGuru: 17,941
  • Guru3D: 15,034
    • Graphics Score: 17,832
  • TweakTown: 17611
    • GPU: 14,545

Time Spy Extreme

  • Mighty Gadget: 6,732
  • OC3D: 8,581
  • TweakTown: 8935

Port Royal

  • Mighty Gadget: 10,106
  • OC3D: 10,921
  • KitGuru: 11,474
  • Guru3D: 11,449

Fire Strike Ultra

  • Mighty Gadget: 9,800
  • KitGuru: 10,910
  • Guru3D: 10,667
  • TweakTown: 10,558

Assassin’s Creed Benchmark

Nvidia GeForce RTX 3080 & AMD Ryzen 7 2700 Benchmarks – Does the CPU bottleneck the GPU? 6

At 1440P

  • Mighty Gadget:
    • Average: 74fps
    • Minimum: 37fps
  • PC Gamer:
    • Average: 90fps
    • Minimum: 47fps
  • EuroGamer : 84fps

Crysis Remastered Benchmark

  • Very High @ 1440P
  • Average FPS: 44.45

Horizon New Dawn Benchmark

At 1440P

  • Mighty Gadget:
    • Average: 88fps
  • PC Gamer:
    • Average: 129fps
    • Minimum: 103fps
  • Gamer Nexus
    • Average: 141 (custom quality)

Also, PC Centric on Twitter, found that his i9-10980XE was throttling the GPU performance. So I am basically screwed with my CPU.

Far Cry New Dawn Benchmark

At 1440P

  • Mighty Gadget
    • Average: 74fps
    • Minimum:52fps
  • Tweak Town:
    • Average: 115fps
    • Minimum: 83fps
  • KitGuru:
    • Average:147fps
    • Minimum:106fps
  • Guru3D
    • Average:119fps

Overall

On the one hand, my benchmarks look disappointing, with the rest of my system clearly holding the RTX 3080 back. I have to admit, I didn’t factor in how much of a difference this would have made.

However, I am not too upset, I have gone from 34 fps average and 18 minimum in Far Cry at max settings and native resolution to 74fps average and 60fps minimum.

My 3D Mark result has gone from 5201 with a GPU score of 5046 to 14096 with a GPU score of 16858.

So I am looking at well over double the performance in all games, and this will improve further once I update my hardware.

Some sites have suggested that the CPU bottleneck occur more at the lower resolutions, including 1440p, so this may explain some of my results. I mainly tested this resolution due to its popularity.

I will continue to add new benchmarks the more I use the card. If there is interest, and I can source alternative hardware, I will see if I can benchmark with other hardware configurations.

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