Radeon HD 7870 XT vs Radeon RX 5600

Intro

Compare those specifications to the Radeon RX 5600, which features core clock speeds of 1375 MHz on the GPU, and 1500 MHz on the 6144 MB of GDDR6 memory. It features 2048 SPUs along with 128 TAUs 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

The Radeon RX 5600 should theoretically perform quite a bit faster than the Radeon HD 7870 XT in general. (explain)

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

Texel Rate

The Radeon RX 5600 should be quite a bit (more or less 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

The Radeon RX 5600 will be quite a bit (more or less 197%) more effective at full screen anti-aliasing than the Radeon HD 7870 XT, and should be able to handle higher resolutions without losing too much performance. (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: Bandwidth is the max amount of information (counted in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to the 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 the core speed of the card. 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 output rate also depends 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 max fill rate.