Radeon RX 580 vs Radeon RX 6500 XT

Intro

Compare all of that to the Radeon RX 6500 XT, which uses a 6 nm design. AMD has set the core speed at 2200 MHz. The GDDR6 RAM runs at a speed of 2250 MHz on this particular card. It features 1024 SPUs along with 64 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6500 XT		107 Watts
Radeon RX 580		185 Watts
	Difference: 78 Watts (73%)

Memory Bandwidth

In theory, the Radeon RX 580 will be 78% faster than the Radeon RX 6500 XT overall, due to its higher data rate. (explain)

Radeon RX 580		262144 MB/sec
Radeon RX 6500 XT		147456 MB/sec
	Difference: 114688 (78%)

Texel Rate

The Radeon RX 580 should be much (approximately 29%) more effective at AF than the Radeon RX 6500 XT. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon RX 6500 XT		140800 Mtexels/sec
	Difference: 40208 (29%)

Pixel Rate

The Radeon RX 6500 XT is quite a bit (approximately 75%) faster with regards to FSAA than the Radeon RX 580, and also should be capable of handling higher resolutions more effectively. (explain)

Radeon RX 6500 XT		70400 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 30176 (75%)

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 maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface in one second. The number is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.