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GeForce GTX 1070 vs Radeon HD 7990

Intro

The GeForce GTX 1070 features a GPU core clock speed of 1506 MHz, and the 8192 MB of GDDR5 memory runs at 2000 MHz through a 256-bit bus. It also is comprised of 1920 SPUs, 120 TAUs, and 64 ROPs.

Compare those specs to the Radeon HD 7990, which comes with GPU clock speed of 950 MHz, and 3072 MB of GDDR5 RAM set to run at 1500 MHz through a 384-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

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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

GeForce GTX 1070 18174 points
Radeon HD 7990 15520 points
Difference: 2654 (17%)

Zcash Mining Hash Rate

Radeon HD 7990 513 Sol/s
GeForce GTX 1070 436 Sol/s
Difference: 77 (18%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 150 Watts
Radeon HD 7990 375 Watts
Difference: 225 Watts (150%)

Memory Bandwidth

In theory, the Radeon HD 7990 should perform a lot faster than the GeForce GTX 1070 in general. (explain)

Radeon HD 7990 576000 MB/sec
GeForce GTX 1070 262144 MB/sec
Difference: 313856 (120%)

Texel Rate

The Radeon HD 7990 should be much (approximately 35%) more effective at texture filtering than the GeForce GTX 1070. (explain)

Radeon HD 7990 243200 Mtexels/sec
GeForce GTX 1070 180720 Mtexels/sec
Difference: 62480 (35%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 1070 is the winner, by far. (explain)

GeForce GTX 1070 96384 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 35584 (59%)

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 1070

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.

Specifications

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Model GeForce GTX 1070 Radeon HD 7990
Manufacturer nVidia AMD
Year June 2016 April 2013
Code Name GP104-200 Malta
Memory 8192 MB 3072 MB (x2)
Core Speed 1506 MHz 950 MHz (x2)
Memory Speed 8000 MHz 6000 MHz (x2)
Power (Max TDP) 150 watts 375 watts
Bandwidth 262144 MB/sec 576000 MB/sec
Texel Rate 180720 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 96384 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 1920 2048 (x2)
Texture Mapping Units 120 128 (x2)
Render Output Units 64 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit (x2)
Fab Process 16 nm 28 nm
Transistors 7200 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12.0 DirectX 11.1
OpenGL Version OpenGL 4.5 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are applied in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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GeForce GTX 1070

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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