Radeon HD 4870 1GB vs Radeon RX 5600 XT

Intro

Compare those specs to the Radeon RX 5600 XT, which has GPU core speed of 1375 MHz, and 6144 MB of GDDR6 memory set to run at 1500 MHz through a 192-bit bus. It also is made up of 2304 Stream Processors, 144 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4870 1GB		150 Watts
Radeon RX 5600 XT		160 Watts
	Difference: 10 Watts (7%)

Memory Bandwidth

The Radeon RX 5600 XT should in theory perform a lot faster than the Radeon HD 4870 1GB in general. (explain)

Radeon RX 5600 XT		344064 MB/sec
Radeon HD 4870 1GB		115200 MB/sec
	Difference: 228864 (199%)

Texel Rate

The Radeon RX 5600 XT will be a lot (approximately 560%) more effective at AF than the Radeon HD 4870 1GB. (explain)

Radeon RX 5600 XT		198000 Mtexels/sec
Radeon HD 4870 1GB		30000 Mtexels/sec
	Difference: 168000 (560%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 5600 XT is the winner, by far. (explain)

Radeon RX 5600 XT		88000 Mpixels/sec
Radeon HD 4870 1GB		12000 Mpixels/sec
	Difference: 76000 (633%)

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 max amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one 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. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.