Radeon R9 270X vs Radeon RX 6600 XT

Intro

Compare those specs to the Radeon RX 6600 XT, which has a clock speed of 1968 MHz and a GDDR6 memory speed of 2000 MHz. It also makes use of a 128-bit bus, and makes use of a 7 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT		160 Watts
Radeon R9 270X		180 Watts
	Difference: 20 Watts (13%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6600 XT should in theory be a lot superior to the Radeon R9 270X overall. (explain)

Radeon RX 6600 XT		262144 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 82944 (46%)

Texel Rate

The Radeon RX 6600 XT should be quite a bit (more or less 215%) better at anisotropic filtering than the Radeon R9 270X. (explain)

Radeon RX 6600 XT		251904 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 171904 (215%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon RX 6600 XT is superior to the Radeon R9 270X, by far. (explain)

Radeon RX 6600 XT		125952 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 93952 (294%)

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: Bandwidth is the maximum amount of information (counted in MB per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.