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GeForce RTX 2080 SUPER vs Radeon HD 7990

Intro

The GeForce RTX 2080 SUPER has core speeds of 1650 MHz on the GPU, and 1937 MHz on the 8192 MB of GDDR6 memory. It features 3072 SPUs as well as 192 Texture Address Units and 64 ROPs.

Compare that to the Radeon HD 7990, which features clock speeds of 950 MHz on the GPU, and 1500 MHz on the 3072 MB of GDDR5 RAM. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 SUPER 250 Watts
Radeon HD 7990 375 Watts
Difference: 125 Watts (50%)

Memory Bandwidth

In theory, the Radeon HD 7990 should perform a small bit faster than the GeForce RTX 2080 SUPER overall. (explain)

Radeon HD 7990 576000 MB/sec
GeForce RTX 2080 SUPER 507904 MB/sec
Difference: 68096 (13%)

Texel Rate

The GeForce RTX 2080 SUPER will be a lot (about 30%) better at AF than the Radeon HD 7990. (explain)

GeForce RTX 2080 SUPER 316800 Mtexels/sec
Radeon HD 7990 243200 Mtexels/sec
Difference: 73600 (30%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 2080 SUPER is superior to the Radeon HD 7990, and very much so. (explain)

GeForce RTX 2080 SUPER 105600 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 44800 (74%)

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 2080 SUPER

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 2080 SUPER Radeon HD 7990
Manufacturer nVidia AMD
Year July 2019 April 2013
Code Name TU104-450-A1 Malta
Memory 8192 MB 3072 MB (x2)
Core Speed 1650 MHz 950 MHz (x2)
Memory Speed 1937 GB/s 6000 MHz (x2)
Power (Max TDP) 250 watts 375 watts
Bandwidth 507904 MB/sec 576000 MB/sec
Texel Rate 316800 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 105600 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 3072 2048 (x2)
Texture Mapping Units 192 128 (x2)
Render Output Units 64 32 (x2)
Bus Type GDDR6 GDDR5
Bus Width 256-bit 384-bit (x2)
Fab Process 12 nm 28 nm
Transistors 13600 million 4313 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.1
OpenGL Version OpenGL 4.6 OpenGL 4.3

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 2080 SUPER

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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