Radeon HD 7850 vs Radeon RX 6500 XT

Intro

Compare all of that to the Radeon RX 6500 XT, which features a core clock speed of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also uses a 64-bit memory bus, and uses a 6 nm design. It is comprised of 1024 SPUs, 64 TAUs, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon HD 7850		130 Watts
	Difference: 23 Watts (21%)

Memory Bandwidth

Performance-wise, the Radeon HD 7850 should theoretically be a small bit superior to the Radeon RX 6500 XT overall. (explain)

Radeon HD 7850		153600 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 6144 (4%)

Texel Rate

The Radeon RX 6500 XT will be a lot (approximately 156%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 85760 (156%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6500 XT is superior to the Radeon HD 7850, by a large margin. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 42880 (156%)

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 data (in units of MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 amount of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.