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Geforce GTX 760 vs Radeon HD 7990

Intro

The Geforce GTX 760 has a GPU core clock speed of 980 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1502 MHz through a 256-bit bus. It also features 1152 Stream Processors, 96 TAUs, and 32 ROPs.

Compare those specs to the Radeon HD 7990, which comes with GPU clock speed of 950 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also is made up of 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 7990 15520 points
Geforce GTX 760 5923 points
Difference: 9597 (162%)

Ethereum Mining Hash Rate

Radeon HD 7990 32 Mh/s
Geforce GTX 760 13 Mh/s
Difference: 19 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760 170 Watts
Radeon HD 7990 375 Watts
Difference: 205 Watts (121%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7990 should in theory be a lot superior to the Geforce GTX 760 overall. (explain)

Radeon HD 7990 576000 MB/sec
Geforce GTX 760 192256 MB/sec
Difference: 383744 (200%)

Texel Rate

The Radeon HD 7990 is quite a bit (about 159%) better at AF than the Geforce GTX 760. (explain)

Radeon HD 7990 243200 Mtexels/sec
Geforce GTX 760 94080 Mtexels/sec
Difference: 149120 (159%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 7990 is the winner, by a large margin. (explain)

Radeon HD 7990 60800 Mpixels/sec
Geforce GTX 760 31360 Mpixels/sec
Difference: 29440 (94%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Geforce GTX 760

Amazon.com

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Radeon HD 7990

Amazon.com

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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

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Model Geforce GTX 760 Radeon HD 7990
Manufacturer nVidia AMD
Year June 2013 April 2013
Code Name GK104 Malta
Memory 2048 MB 3072 MB (x2)
Core Speed 980 MHz 950 MHz (x2)
Memory Speed 6008 MHz 6000 MHz (x2)
Power (Max TDP) 170 watts 375 watts
Bandwidth 192256 MB/sec 576000 MB/sec
Texel Rate 94080 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 31360 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 1152 2048 (x2)
Texture Mapping Units 96 128 (x2)
Render Output Units 32 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit (x2)
Fab Process 28 nm 28 nm
Transistors 3540 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.1
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Geforce GTX 760

Amazon.com

Check prices at:

Radeon HD 7990

Amazon.com

Check prices at:

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.

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