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GeForce GTX 1070 Ti vs Radeon HD 7990

Intro

The GeForce GTX 1070 Ti comes with clock speeds of 1607 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2432 SPUs along with 152 Texture Address Units and 64 ROPs.

Compare that to the Radeon HD 7990, which makes use of a 28 nm design. AMD has set the core frequency at 950 MHz. The GDDR5 memory works at a speed of 1500 MHz on this card. It features 2048 SPUs along with 128 TAUs 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

GeForce GTX 1070 Ti 19808 points
Radeon HD 7990 15520 points
Difference: 4288 (28%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 Ti 180 Watts
Radeon HD 7990 375 Watts
Difference: 195 Watts (108%)

Memory Bandwidth

As far as performance goes, the Radeon HD 7990 should theoretically be quite a bit better than the GeForce GTX 1070 Ti in general. (explain)

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

Texel Rate

The GeForce GTX 1070 Ti should be just a bit (about 0%) faster with regards to AF than the Radeon HD 7990. (explain)

GeForce GTX 1070 Ti 244264 Mtexels/sec
Radeon HD 7990 243200 Mtexels/sec
Difference: 1064 (0%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 1070 Ti is superior to the Radeon HD 7990, by far. (explain)

GeForce GTX 1070 Ti 102848 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 42048 (69%)

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 Ti

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 Ti Radeon HD 7990
Manufacturer nVidia AMD
Year November 2017 April 2013
Code Name GP104-300 Malta
Memory 8192 MB 3072 MB (x2)
Core Speed 1607 MHz 950 MHz (x2)
Memory Speed 8000 MHz 6000 MHz (x2)
Power (Max TDP) 180 watts 375 watts
Bandwidth 262144 MB/sec 576000 MB/sec
Texel Rate 244264 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 2432 2048 (x2)
Texture Mapping Units 152 128 (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 4.6 OpenGL 4.3

Memory Bandwidth: Bandwidth is the largest amount of data (measured in MB per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 1070 Ti

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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