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GeForce RTX 4070 Ti vs Radeon HD 7990

Intro

The GeForce RTX 4070 Ti has core speeds of 2310 MHz on the GPU, and 1313 MHz on the 12288 MB of GDDR6X memory. It features 7680 SPUs as well as 240 Texture Address Units and 80 Rasterization Operator Units.

Compare that to the Radeon HD 7990, which comes with a GPU core clock speed of 950 MHz, and 3072 MB of GDDR5 RAM running at 1500 MHz through a 384-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4070 Ti 285 Watts
Radeon HD 7990 375 Watts
Difference: 90 Watts (32%)

Memory Bandwidth

The Radeon HD 7990 should theoretically be just a bit faster than the GeForce RTX 4070 Ti overall. (explain)

Radeon HD 7990 576000 MB/sec
GeForce RTX 4070 Ti 516096 MB/sec
Difference: 59904 (12%)

Texel Rate

The GeForce RTX 4070 Ti will be quite a bit (about 128%) more effective at texture filtering than the Radeon HD 7990. (explain)

GeForce RTX 4070 Ti 554400 Mtexels/sec
Radeon HD 7990 243200 Mtexels/sec
Difference: 311200 (128%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 4070 Ti is the winner, by far. (explain)

GeForce RTX 4070 Ti 184800 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 124000 (204%)

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 RTX 4070 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 RTX 4070 Ti Radeon HD 7990
Manufacturer nVidia AMD
Year January 2023 April 2013
Code Name AD104-400-A1 Malta
Memory 12288 MB 3072 MB (x2)
Core Speed 2310 MHz 950 MHz (x2)
Memory Speed 1313 GB/s 6000 MHz (x2)
Power (Max TDP) 285 watts 375 watts
Bandwidth 516096 MB/sec 576000 MB/sec
Texel Rate 554400 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 184800 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 7680 2048 (x2)
Texture Mapping Units 240 128 (x2)
Render Output Units 80 32 (x2)
Bus Type GDDR6X GDDR5
Bus Width 192-bit 384-bit (x2)
Fab Process 4 nm 28 nm
Transistors 35800 million 4313 million
Bus PCIe 4.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.1
OpenGL Version OpenGL 4.6 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 4070 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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