Radeon RX 580 vs Radeon RX 6650 XT

Intro

Compare that to the Radeon RX 6650 XT, which features core speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT		176 Watts
Radeon RX 580		185 Watts
	Difference: 9 Watts (5%)

Memory Bandwidth

Performance-wise, the Radeon RX 6650 XT should theoretically be a little bit better than the Radeon RX 580 overall. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 580		262144 MB/sec
	Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT is quite a bit (about 45%) faster with regards to anisotropic filtering than the Radeon RX 580. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 580		181008 Mtexels/sec
	Difference: 82032 (45%)

Pixel Rate

The Radeon RX 6650 XT will be quite a bit (more or less 227%) faster with regards to AA than the Radeon RX 580, and able to handle higher resolutions better. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 580		40224 Mpixels/sec
	Difference: 91296 (227%)

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 moved across the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.