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GTX 980 Ti SLI vs. GTX 1080 Ti SLI on AMD Ryzen 7 1800X (Page 1)

GTX 980 Ti SLI vs. GTX 1080 Ti SLI on AMD Ryzen 7 1800X

Two GeForce GTX 1080 Ti cards in SLI against two GTX 980 Ti cards in SLI - all on AMD's 8C/16T monster Ryzen 7 1800X processor - FIGHT!

By Anthony Garreffa | Apr 5, 2017 07:05 pm CDT

It has been a crazy busy last 6-12 months for me, with the amount of travel I do (every event is a minimum 25-hour one-way flight), and I have been on 12 trips in the last 12 months, but I have slowly rebooted the entire GPU side of TweakTown. I've built multiple new systems and retested most of my graphics cards in 4 different resolutions - as well as multi-GPU testing in a separate system.


There are 2 high-end new test beds, 3 monitors (including a 3440x1440 panel for UltraWide testing) - and some beautiful, ridiculously fast components in between. We've added some new benchmarks to the roster, used some of the latest drivers, and are continuing to add and refine all of our included benchmarks. There are new ones coming soon that we'll be throwing in right away, especially when I want to test Vulkan and DX12 to their full potential - in single, and multi-GPU situations.

I have a 5K display that will be here in the next two weeks, which rocks a native resolution of 5120x2880 - up from the 3840x2160 offered on 4K. This is something I was pushed to do when testing NVIDIA's new GeForce GTX 1080 Ti, as it's just so damn powerful - but in SLI? I really need 5K to begin pushing it, as GTX 1080 Ti SLI can run 4K 60FPS without a problem - as long as the game supports SLI.

Before I started testing the GeForce GTX 1080 Ti cards in SLI, I decided to use the new AMD Ryzen 7 1800X test bed, to stress out the motherboard and see how well AMD's latest processor handles two of the fastest graphics cards ever made, in SLI. The answer is: it handled it perfectly, and we are working on Core i7-7700K tests to compare against the Ryzen 7 1800X.

At the same time, I decided that I would test the previous 'Ti' release - NVIDIA's Maxwell-based GeForce GTX 980 Ti. The GTX 980 Ti is still a great graphics card, handling even 3440x1440 pretty smoothly for a previous-gen card - but in SLI, the GTX 980 Ti is potent. We will be adding Radeon RX 480 cards in CrossFire to these charts soon, as they're a work in progress - we'll have another article out with some comparisons of Polaris against Maxwell and Pascal, all on Ryzen 7 1800X.

System Specs


The system that I'm using is my new workstation/gaming PC, something I built last week. For the last week we've been fine tuning benchmarks, and stressing out every card I own on the Ryzen 7 1800X and the ASUS Crosshair VI Hero motherboard.


I'm using the 1TB OCZ RD400 NVMe M.2 SSD, which is super-small, ridiculously fast M.2 SSD that pushes 2600MB/sec read and 1600MB/sec writes.

AMD's new Ryzen 7 1800X processor is cooled by the Noctua U12S SE-AM4.

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