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GeForce RTX 2060 vs Radeon HD 7990

Intro

The GeForce RTX 2060 features a core clock speed of 1365 MHz and a GDDR6 memory frequency of 14000 MHz. It also features a 192-bit memory bus, and uses a 12 nm design. It features 1920 SPUs, 120 Texture Address Units, and 48 Raster Operation Units.

Compare all that to the Radeon HD 7990, which makes use of a 28 nm design. AMD has clocked the core speed at 950 MHz. The GDDR5 RAM works at a frequency of 1500 MHz on this particular model. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2060 160 Watts
Radeon HD 7990 375 Watts
Difference: 215 Watts (134%)

Memory Bandwidth

In theory, the Radeon HD 7990 is 67% quicker than the GeForce RTX 2060 in general, because of its higher data rate. (explain)

Radeon HD 7990 576000 MB/sec
GeForce RTX 2060 344064 MB/sec
Difference: 231936 (67%)

Texel Rate

The Radeon HD 7990 is much (approximately 48%) better at anisotropic filtering than the GeForce RTX 2060. (explain)

Radeon HD 7990 243200 Mtexels/sec
GeForce RTX 2060 163800 Mtexels/sec
Difference: 79400 (48%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce RTX 2060 is the winner, but it probably won't make a huge difference. (explain)

GeForce RTX 2060 65520 Mpixels/sec
Radeon HD 7990 60800 Mpixels/sec
Difference: 4720 (8%)

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 2060

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 2060 Radeon HD 7990
Manufacturer nVidia AMD
Year January 2019 April 2013
Code Name TU106-200A-KA-A1 Malta
Memory 6144 MB 3072 MB (x2)
Core Speed 1365 MHz 950 MHz (x2)
Memory Speed 14000 GB/s 6000 MHz (x2)
Power (Max TDP) 160 watts 375 watts
Bandwidth 344064 MB/sec 576000 MB/sec
Texel Rate 163800 Mtexels/sec 243200 Mtexels/sec
Pixel Rate 65520 Mpixels/sec 60800 Mpixels/sec
Unified Shaders 1920 2048 (x2)
Texture Mapping Units 120 128 (x2)
Render Output Units 48 32 (x2)
Bus Type GDDR6 GDDR5
Bus Width 192-bit 384-bit (x2)
Fab Process 12 nm 28 nm
Transistors 10800 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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure 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 fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce RTX 2060

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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