Radeon R9 285 vs Radeon RX 6750 XT

Intro

Compare those specs to the Radeon RX 6750 XT, which features GPU clock speed of 2150 MHz, and 12288 MB of GDDR6 memory running at 2250 MHz through a 192-bit bus. It also is made up of 2560 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
Radeon RX 6750 XT		250 Watts
	Difference: 60 Watts (32%)

Memory Bandwidth

In theory, the Radeon RX 6750 XT is 151% quicker than the Radeon R9 285 overall, due to its higher bandwidth. (explain)

Radeon RX 6750 XT		442368 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 266368 (151%)

Texel Rate

The Radeon RX 6750 XT will be much (about 235%) better at AF than the Radeon R9 285. (explain)

Radeon RX 6750 XT		344000 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 241184 (235%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6750 XT is the winner, by far. (explain)

Radeon RX 6750 XT		137600 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 108224 (368%)

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 transferred over the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR memory, it 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 are applied per second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at 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 graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.