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GeForce GTX 1070 Ti vs Radeon HD 7990

Intro

The GeForce GTX 1070 Ti features clock speeds of 1607 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2432 SPUs as well as 152 TAUs and 64 Rasterization Operator Units.

Compare those specs to the Radeon HD 7990, which features GPU core speed of 950 MHz, and 3072 MB of GDDR5 RAM running at 1500 MHz through a 384-bit bus. It also features 2048 SPUs, 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

Theoretically speaking, the Radeon HD 7990 should be 120% quicker than the GeForce GTX 1070 Ti in general, because of its greater data rate. (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 a small bit (about 0%) more effective at anisotropic filtering than the Radeon HD 7990. (explain)

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

Pixel Rate

The GeForce GTX 1070 Ti should be quite a bit (more or less 69%) better at FSAA than the Radeon HD 7990, and also should be able to handle higher screen resolutions better. (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 maximum amount of information (measured in MB per second) that can be moved over the external memory interface within a second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines 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 is also dependant on quite a few other factors, especially 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 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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