Radeon R9 270 vs Radeon RX 6500 XT

Intro

Compare those specifications to the Radeon RX 6500 XT, which comes with core clock speeds of 2200 MHz on the GPU, and 2250 MHz on the 4096 MB of GDDR6 memory. It features 1024 SPUs as well as 64 Texture Address Units and 32 ROPs.

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

Performance-wise, the Radeon R9 270 should in theory be quite a bit superior to the Radeon RX 6500 XT in general. (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 a lot (about 96%) more effective at 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

If running with a high screen resolution is important to you, then the Radeon RX 6500 XT is superior to the Radeon R9 270, by a large margin. (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 largest amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total number of texture units by the core 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 applied per second.

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