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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 980 Ti 6GB Radeon HD 7950 3-way Crossfire
Halo: Reach 74% 71%
Cyberpunk 2077 12% 24%
Dragon Ball Z Kakarot 50% 45%
Red Dead Redemption 2 18% 10%
Call of Duty: Modern Warfare 18% 10%
Microsoft Flight Simulator 12% 24%
Doom Eternal 30% 23%
Grand Theft Auto VI 25% 37%
FIFA 20 56% 52%
Need For Speed Heat 18% 10%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 980 Ti 6GB are very slightly better than the AMD Radeon HD 7950 3-way Crossfire.

The GTX 980 Ti has a 200 MHz higher core clock speed than the HD 7950, but the HD 7950 has 160 more Texture Mapping Units than the GTX 980 Ti. As a result, the HD 7950 exhibits a 92.8 GTexel/s better Texture Fill Rate than the GTX 980 Ti. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 980 Ti has a 200 MHz higher core clock speed than the HD 7950 and the same number of Render Output Units. This results in the GTX 980 Ti providing 19.2 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 980 Ti was released over three years more recently than the HD 7950, and so the GTX 980 Ti is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the HD 7950 when running the latest games.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The HD 7950 has 3072 MB more video memory than the GTX 980 Ti, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the HD 7950 also has superior memory performance overall.

The HD 7950 has 383.4 GB/sec greater memory bandwidth than the GTX 980 Ti, which means that the memory performance of the HD 7950 is massively better than the GTX 980 Ti.

The GeForce GTX 980 Ti 6GB has 2816 Shader Processing Units and the Radeon HD 7950 3-way Crossfire has 5376. However, the actual shader performance of the GTX 980 Ti is 4091 and the actual shader performance of the HD 7950 is 3656. The GTX 980 Ti having 435 better shader performance is not particularly notable, as altogether the HD 7950 performs better when taking into account other relevant data.

The GeForce GTX 980 Ti 6GB requires 250 Watts to run and the Radeon HD 7950 3-way Crossfire requires 540 Watts. We would recommend a PSU with at least 600 Watts for the GTX 980 Ti. The HD 7950 requires 290 Watts more than the GTX 980 Ti to run. The difference is significant enough that the HD 7950 may have an adverse affect on your yearly electricity bills in comparison to the GTX 980 Ti.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1000 MHzvs800 MHz
Boost Clock1076 MHzvs-
ArchitectureMaxwell GM200-310-A1GCN 1.0 Tahiti PRO (x3)
OC Potential Good vs Fair
Driver Support Great vs Good
Release Date01 Jun 2015vs01 Jan 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs -
1600x900
10
green tick vs -
1920x1080
10
green tick vs green tick
10
2560x1440
8.5
green tick vs -
3840x2160
6.6
green tick vs -

GPU Memory

Memory6144 MBvs9216 MB
Memory Speed1753 MHzvs1250 MHz
Memory Bus384 Bitvs1152 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth336.6GB/secvs720GB/sec
L2 Cache 3072 KB green tick vs 2304 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2816vs5376
Actual Shader Performance100%vs100%
Technology28nmvs28nm
Texture Mapping Units176vs336
Texture Rate176 GTexel/svs268.8 GTexel/s
Render Output Units96vs96
Pixel Rate96 GPixel/svs76.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)5120x3200vs4096x2160
VGA Connections0vs0
DVI Connections1vs3
HDMI Connections1vs3
DisplayPort Connections3vs-
Comparison

GPU Power Requirements

Max Power250 Wattsvs540 Watts
Recommended PSU600 Watts & 42 Amps-

GPU Features

DirectX12.1vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.4
Open CL-vs-
Notebook GPUnono
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4790K 4-Core 4.0GHzvsIntel Core i5-3570K 3.4GHz
Recommended RAM16 GBvs8 GB
Maximum Recommended Gaming Resolution2560x1600vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GTX 980 Ti 6GB is an Enthusiast Graphics Card based on the second revision of the Maxwell architecture.

Architecture
The Second variant of the Maxwell Architecture, despite being also manufactured with a 28nm technology, has an extremely large L2 Cache and features a Third Generation Delta Color Compression which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.
The Second Revision of Maxwell also adds VXGI (Voxel Global Illumination) which makes scenes significantly more lifelike and believable as light interacts more realistically in the game environment and the MFAA technology which provides the same effect as MSAA but at a much lower performance cost.

GPU
It equips a GPU codenamed GM200-310-A1 which has 22 SM activated and thus 2816 Shader Processing Units, 176 TMUs and 96 ROPs. The central unit runs at 1000MHz and goes up to 1076MHz, in Turbo Mode.

Memory
The GPU accesses a 6GB frame buffer of fast GDDR5, through a 384-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1753MHz.

Power Consumption
With a rated board TDP of 250W, it requires at least a 600W PSU with one available 6-pin and one available 8-pin connectors.

Performance
Benchmarks Indicate its performance is slightly above AMD's Dual Radeon R9 295X2 at 1920x1080 but at any resolution above that, the latter proves to be faster.
As expected, $999 GeForce GTX Titan X is also slightly faster but GeForce GTX 980 is beaten in around 20%.
Even so, GeForce GTX 980 Ti 6GB is not a competitive product because a solution of two GeForce GTX 970 in SLI is still much faster and doesn't come at a much higher cost ($658 against $649).

System Suggestions
GeForce GTX 980 Ti 6GB is best suited for resolutions up to and including 2560x1600. We recommend a Very Strong Processor and 16GB of RAM for Optimal Performance.
Radeon HD 7950 3-way Crossfire is a solution of three Radeon HD 7950 put together using AMD'S Crossfire technology.
Check the page of Radeon HD 7950 to know more about its chip.
Crossfire relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, is somewhat superior to a single Radeon HD 7990 performing by itself it might be worse (depending on whether or not the 3D game supports crossfire or in the graphics driver) than a single Radeon HD 7950. Expect this combination to draw up to 540 Watt though the average power consumption should be slightly lower.
Even the most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
-
GPU Variants
-
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