Radeon HD 4870 X2 vs Radeon RX 5500 XT

Intro

Compare those specs to the Radeon RX 5500 XT, which makes use of a 7 nm design. AMD has set the core frequency at 1717 MHz. The GDDR6 RAM is set to run at a frequency of 1750 MHz on this card. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT		130 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 220 Watts (169%)

Memory Bandwidth

The Radeon HD 4870 X2, in theory, should perform a little bit faster than the Radeon RX 5500 XT in general. (explain)

Radeon HD 4870 X2		230400 MB/sec
Radeon RX 5500 XT		229376 MB/sec
	Difference: 1024 (0%)

Texel Rate

The Radeon RX 5500 XT is a lot (about 152%) better at anisotropic filtering than the Radeon HD 4870 X2. (explain)

Radeon RX 5500 XT		151096 Mtexels/sec
Radeon HD 4870 X2		60000 Mtexels/sec
	Difference: 91096 (152%)

Pixel Rate

The Radeon RX 5500 XT should be much (about 129%) faster with regards to FSAA than the Radeon HD 4870 X2, and should be capable of handling higher screen resolutions better. (explain)

Radeon RX 5500 XT		54944 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 30944 (129%)

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: Bandwidth is the max amount of information (counted in MB per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 once 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, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are 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 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 maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units 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 output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.