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Geforce GTX 760 vs Radeon HD 7950 3GB

Intro

The Geforce GTX 760 uses a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 memory is set to run at a frequency of 1502 MHz on this card. It features 1152 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

Compare that to the Radeon HD 7950 3GB, which features GPU clock speed of 800 MHz, and 3072 MB of GDDR5 RAM running at 1250 MHz through a 384-bit bus. It also is comprised of 1792 SPUs, 112 TAUs, and 32 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760 170 Watts
Radeon HD 7950 3GB 200 Watts
Difference: 30 Watts (18%)

Memory Bandwidth

In theory, the Radeon HD 7950 3GB will be 25% faster than the Geforce GTX 760 overall, because of its greater bandwidth. (explain)

Radeon HD 7950 3GB 240000 MB/sec
Geforce GTX 760 192256 MB/sec
Difference: 47744 (25%)

Texel Rate

The Geforce GTX 760 should be a bit (about 5%) more effective at AF than the Radeon HD 7950 3GB. (explain)

Geforce GTX 760 94080 Mtexels/sec
Radeon HD 7950 3GB 89600 Mtexels/sec
Difference: 4480 (5%)

Pixel Rate

The Geforce GTX 760 will be a lot (about 23%) more effective at FSAA than the Radeon HD 7950 3GB, and should be able to handle higher resolutions without slowing down too much. (explain)

Geforce GTX 760 31360 Mpixels/sec
Radeon HD 7950 3GB 25600 Mpixels/sec
Difference: 5760 (23%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Geforce GTX 760

Amazon.com

Radeon HD 7950 3GB

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

Model Geforce GTX 760 Radeon HD 7950 3GB
Manufacturer nVidia AMD
Year June 2013 January 2012
Code Name GK104 Tahiti Pro
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 3072 MB
Core Speed 980 MHz 800 MHz
Shader Speed 980 MHz (N/A) MHz
Memory Speed 1502 MHz (6008 MHz effective) 1250 MHz (5000 MHz effective)
Unified Shaders 1152 1792
Texture Mapping Units 96 112
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.2
Power (Max TDP) 170 watts 200 watts
Shader Model 5.0 5.0
Bandwidth 192256 MB/sec 240000 MB/sec
Texel Rate 94080 Mtexels/sec 89600 Mtexels/sec
Pixel Rate 31360 Mpixels/sec 25600 Mpixels/sec

Memory Bandwidth: Bandwidth is the maximum amount of information (counted in MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Comments

3 Responses to “Geforce GTX 760 vs Radeon HD 7950 3GB”
John Cock says:
amd PENETRATES everything
Jack Black says:
Jesus, look how behind the times compared with the 7950 the 760 is. The 7950 still beats it in IRL, even 18 months on...
Jack Black smells says:
The 760 is a newer card than the 7950. What are you talking about?

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