Radeon R9 270 vs Radeon RX 6500 XT

Intro

Compare those specs to the Radeon RX 6500 XT, which has GPU core speed of 2200 MHz, and 4096 MB of GDDR6 RAM running at 2250 MHz through a 64-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

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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

The Radeon R9 270, in theory, should be a lot faster than 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 will be quite a bit (about 96%) faster with regards to texture 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 should be much (about 144%) more effective at FSAA than the Radeon R9 270, and will be 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 maximum amount of data (counted in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If it uses 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 number of texture map elements (texels) that are processed in one 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.