Radeon HD 7870 XT vs Radeon RX 5600

Intro

Compare all of that to the Radeon RX 5600, which features a clock frequency of 1375 MHz and a GDDR6 memory frequency of 1500 MHz. It also makes use of a 192-bit bus, and uses a 7 nm design. It features 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600		150 Watts
Radeon HD 7870 XT		185 Watts
	Difference: 35 Watts (23%)

Memory Bandwidth

Performance-wise, the Radeon RX 5600 should in theory be quite a bit superior to the Radeon HD 7870 XT overall. (explain)

Radeon RX 5600		294912 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 102912 (54%)

Texel Rate

The Radeon RX 5600 will be a lot (about 98%) more effective at AF than the Radeon HD 7870 XT. (explain)

Radeon RX 5600		176000 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 87200 (98%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 5600 is the winner, by a large margin. (explain)

Radeon RX 5600		88000 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 58400 (197%)

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.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the graphics 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 maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.