Radeon R9 285 vs Radeon RX 6700 XT

Intro

Compare that to the Radeon RX 6700 XT, which features core speeds of 2321 MHz on the GPU, and 2000 MHz on the (Unknown) MB of GDDR6 RAM. It features 2560 SPUs as well as 160 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 285		190 Watts
Radeon RX 6700 XT		230 Watts
	Difference: 40 Watts (21%)

Memory Bandwidth

In theory, the Radeon RX 6700 XT will be 123% quicker than the Radeon R9 285 in general, because of its higher bandwidth. (explain)

Radeon RX 6700 XT		393216 MB/sec
Radeon R9 285		176000 MB/sec
	Difference: 217216 (123%)

Texel Rate

The Radeon RX 6700 XT is quite a bit (more or less 261%) faster with regards to texture filtering than the Radeon R9 285. (explain)

Radeon RX 6700 XT		371360 Mtexels/sec
Radeon R9 285		102816 Mtexels/sec
	Difference: 268544 (261%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6700 XT is superior to the Radeon R9 285, by a large margin. (explain)

Radeon RX 6700 XT		148544 Mpixels/sec
Radeon R9 285		29376 Mpixels/sec
	Difference: 119168 (406%)

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 largest amount of information (in units of MB per second) that can be transferred over the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.