Radeon R9 270 vs Radeon RX 6500 XT

Intro

Compare that to the Radeon RX 6500 XT, which comes with a clock speed of 2200 MHz and a GDDR6 memory frequency of 2250 MHz. It also makes use of a 64-bit memory bus, and makes use of a 6 nm design. It features 1024 SPUs, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon R9 270		150 Watts
	Difference: 43 Watts (40%)

Memory Bandwidth

As far as performance goes, the Radeon R9 270 should in theory be much better than the Radeon RX 6500 XT overall. (explain)

Radeon R9 270		179200 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 31744 (22%)

Texel Rate

The Radeon RX 6500 XT should be much (about 96%) faster with regards to anisotropic filtering than the Radeon R9 270. (explain)

Radeon RX 6500 XT		140800 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 68800 (96%)

Pixel Rate

The Radeon RX 6500 XT will be a lot (more or less 144%) faster with regards to anti-aliasing than the Radeon R9 270, and also able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon R9 270		28800 Mpixels/sec
	Difference: 41600 (144%)

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 max amount of information (in units of megabytes 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 it uses DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.