Radeon R9 M265X vs Radeon RX 6900 XT

Intro

Compare those specs to the Radeon RX 6900 XT, which features core clock speeds of 1825 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 RAM. It features 5120 SPUs along with 320 Texture Address Units and 128 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon RX 6900 XT should theoretically be much superior to the Radeon R9 M265X overall. (explain)

Radeon RX 6900 XT		524288 MB/sec
Radeon R9 M265X		72000 MB/sec
	Difference: 452288 (628%)

Texel Rate

The Radeon RX 6900 XT will be much (about 2439%) more effective at texture filtering than the Radeon R9 M265X. (explain)

Radeon RX 6900 XT		584000 Mtexels/sec
Radeon R9 M265X		23000 Mtexels/sec
	Difference: 561000 (2439%)

Pixel Rate

The Radeon RX 6900 XT will be much (approximately 2439%) faster with regards to AA than the Radeon R9 M265X, and also should be capable of handling higher resolutions without losing too much performance. (explain)

Radeon RX 6900 XT		233600 Mpixels/sec
Radeon R9 M265X		9200 Mpixels/sec
	Difference: 224400 (2439%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. It's worked out by multiplying the card's interface width by its memory speed. If it uses DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.