Radeon RX 460 2GB vs Radeon RX 6650 XT

Intro

Compare those specs to the Radeon RX 6650 XT, which comes with a clock speed of 2055 MHz and a GDDR6 memory frequency of 2190 MHz. It also uses a 128-bit memory bus, and uses a 7 nm design. It features 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
Radeon RX 6650 XT		176 Watts
	Difference: 101 Watts (135%)

Memory Bandwidth

In theory, the Radeon RX 6650 XT will be 156% faster than the Radeon RX 460 2GB overall, due to its greater data rate. (explain)

Radeon RX 6650 XT		287072 MB/sec
Radeon RX 460 2GB		112000 MB/sec
	Difference: 175072 (156%)

Texel Rate

The Radeon RX 6650 XT will be quite a bit (approximately 331%) more effective at texture filtering than the Radeon RX 460 2GB. (explain)

Radeon RX 6650 XT		263040 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 202000 (331%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 6650 XT is the winner, and very much so. (explain)

Radeon RX 6650 XT		131520 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 114080 (654%)

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 max amount of data (counted in MB per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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