Radeon RX 460 vs Radeon RX 7900 XTX

Intro

Compare that to the Radeon RX 7900 XTX, which has a core clock frequency of 1855 MHz and a GDDR6 memory speed of 2500 MHz. It also uses a 384-bit memory bus, and uses a 5 nm design. It is made up of 6144 SPUs, 384 Texture Address Units, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 280 Watts (373%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX should be 778% quicker than the Radeon RX 460 overall, due to its greater bandwidth. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 871040 (778%)

Texel Rate

The Radeon RX 7900 XTX will be a lot (about 1067%) faster with regards to anisotropic filtering than the Radeon RX 460. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 651280 (1067%)

Pixel Rate

The Radeon RX 7900 XTX should be a lot (about 1942%) better at full screen anti-aliasing than the Radeon RX 460, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 338720 (1942%)

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 data (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.