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Gaming Performance Comparison

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 770 are marginally better than the AMD Radeon HD 7970 GHz Edition.

The GeForce GTX 770 has a 46 MHz higher core clock speed and the same number of Texture Mapping Units as the HD 7970. This results in the GeForce GTX 770 providing 5.9 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce GTX 770 has a 46 MHz higher core clock speed than the HD 7970 and the same number of Render Output Units. This results in the GeForce GTX 770 providing 1.5 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 GeForce GTX 770 was released less than a year after the HD 7970, and so they are likely to have similar driver support for optimizing performance 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 Radeon HD 7970 GHz Edition and the GeForce GTX 770 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The HD 7970 has 63.7 GB/sec greater memory bandwidth than the GeForce GTX 770, which means that the memory performance of the HD 7970 is much better than the GeForce GTX 770.

The Radeon HD 7970 GHz Edition has 2048 Shader Processing Units and the GeForce GTX 770 has 1536. However, the actual shader performance of the HD 7970 is 1331.2. The GeForce GTX 770 having 204.8 better shader performance is not particularly notable, as altogether the HD 7970 performs better when taking into account other relevant data.

The Radeon HD 7970 GHz Edition requires 300 Watts to run and the GeForce GTX 770 requires 230 Watts. We would recommend a PSU with at least 500 Watts for the HD 7970 and a PSU with at least 550 Watts for the GeForce GTX 770. The HD 7970 requires 70 Watts more than the GeForce GTX 770 to run. The difference is significant enough that the HD 7970 may have an adverse affect on your yearly electricity bills in comparison to the GeForce GTX 770.

GPU Core Details

Core Speed1000 MHzvs1046 MHz
ArchitectureTahiti XT2Kepler GK104
Notebook GPUnono
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Release Date22 Jun 201230 May 2013
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory3072 MBvs3072 MB
Memory Speed1500 MHzvs1752 MHz
Memory Bus384 Bitvs256 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth288GB/secvs224.3GB/sec
Comparison

GPU Display

Shader Processing Units2048vs1536
Actual Shader Performance1331.2vs1536
Technology28nmvs28nm
Texture Mapping Units128vs128
Texture Rate128 GTexel/svs133.9 GTexel/s
Render Output Units32vs32
Pixel Rate32 GPixel/svs33.5 GPixel/s
Comparison

GPU Display Tech

DirectX11.1vs11.1
Shader Model5.0vs5.0
Open GL4.2vs4.3
Max Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections1vs2
HDMI Connections1vs1
Comparison

GPU Power Requirements

Max Power300 Wattsvs230 Watts

GPU Supporting Hardware

Recommended RAM-8 GB
Recommended Screen Size1920x10801920x1080
Recommended PSU500 Watts & 42 Ampsvs550 Watts & 38 Amps

Gaming Performance Value

Performance Value

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GPU Mini Review

Mini ReviewRadeon HD 7970 GHz Edition, codenamed Tahiti XT2, is the successor to Radeon HD 7970.
In this edition, the core configuration remains the same. The core-clock was increased from 925MHz to 1000MHz (1050MHz in Turbo) and the memory clock from 1375MHz to 1500MHz.
Benchmarks indicate the performance is around 10% superior than Radeon HD 7970 and so it was 2012 most powerful single Graphics Card.
As of 2013, it's still one of the fastest but GeForce GTX 780 & GeForce GTX TITAN offer superior performance.
GeForce GTX 770 is a high-end graphics card based on the 28nm, Kepler architecture.
It's based on the Kepler GK104 Core and therefore offer 1536 Shader Processing Units, 128 TMUs and 32 ROPs on a 256-bit memory interface of fast GDDR5. While the central unit runs at 1046MHz and goes up to 1085MHz in Turbo Mode, the memory clock operates at 1753MHz. It consumes up to 230W.
It's, therefore, a tweaked GeForce GTX 680 that performs up to 5% better. Therefore, it's suited for a 1080p resolution and to play the most demanding games at the highest settings.
Recommended CPUIntel Xeon E3-1220
AMD FX-6200
Intel Core i5-3350P 3.1GHz
Intel Core i5-2380P 3.1GHz
Intel Core i5-4440S 2.8GHz
AMD Opteron 6174
Intel Core i5-4670R 3.0GHz
AMD Opteron 6172
Intel Core i5-4670K 3.4GHz
AMD FX-8150
Possible GPU Upgrades--
GPU Variants--