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GeForce GTX 1070 Ti vs Radeon HD 7990

Intro

The GeForce GTX 1070 Ti uses a 16 nm design. nVidia has set the core frequency at 1607 MHz. The GDDR5 memory runs at a speed of 2000 MHz on this particular card. It features 2432 SPUs as well as 152 Texture Address Units and 64 ROPs.

Compare those specs to the Radeon HD 7990, which has a core clock frequency of 950 MHz and a GDDR5 memory speed of 1500 MHz. It also makes use of a 384-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

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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 19826 points
Radeon HD 7990 15520 points
Difference: 4306 (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, the Radeon HD 7990 should perform much faster 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 is a bit (more or less 0%) faster with regards to texture 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 a lot (approximately 69%) more effective at anti-aliasing than the Radeon HD 7990, and also will be capable of handling higher resolutions without losing too much performance. (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

Radeon HD 7990

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

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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 (counted in MB per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. 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 worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the card's clock speed. 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 fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

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GeForce GTX 1070 Ti

Amazon.com

Radeon HD 7990

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.

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