Radeon HD 7990 vs Radeon RX 5600

Intro

Compare all of that to the Radeon RX 5600, which features a core clock speed of 1375 MHz and a GDDR6 memory speed of 1500 MHz. It also uses a 192-bit bus, and makes use of a 7 nm design. It is comprised of 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600		150 Watts
Radeon HD 7990		375 Watts
	Difference: 225 Watts (150%)

Memory Bandwidth

Performance-wise, the Radeon HD 7990 should theoretically be a lot better than the Radeon RX 5600 overall. (explain)

Radeon HD 7990		576000 MB/sec
Radeon RX 5600		294912 MB/sec
	Difference: 281088 (95%)

Texel Rate

The Radeon HD 7990 will be much (about 38%) more effective at anisotropic filtering than the Radeon RX 5600. (explain)

Radeon HD 7990		243200 Mtexels/sec
Radeon RX 5600		176000 Mtexels/sec
	Difference: 67200 (38%)

Pixel Rate

The Radeon RX 5600 will be a lot (more or less 45%) faster with regards to anti-aliasing than the Radeon HD 7990, and should be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 5600		88000 Mpixels/sec
Radeon HD 7990		60800 Mpixels/sec
	Difference: 27200 (45%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.