Radeon R9 M390X vs Radeon RX 6950 XT

Intro

Compare all that to the Radeon RX 6950 XT, which uses a 7 nm design. AMD has set the core frequency at 1925 MHz. The GDDR6 memory is set to run at a speed of 2250 MHz on this specific model. It features 5120 SPUs as well as 320 TAUs and 128 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M390X		125 Watts
Radeon RX 6950 XT		335 Watts
	Difference: 210 Watts (168%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6950 XT should in theory be quite a bit better than the Radeon R9 M390X in general. (explain)

Radeon RX 6950 XT		589824 MB/sec
Radeon R9 M390X		160000 MB/sec
	Difference: 429824 (269%)

Texel Rate

The Radeon RX 6950 XT is quite a bit (more or less 566%) better at texture filtering than the Radeon R9 M390X. (explain)

Radeon RX 6950 XT		616000 Mtexels/sec
Radeon R9 M390X		92544 Mtexels/sec
	Difference: 523456 (566%)

Pixel Rate

The Radeon RX 6950 XT is a lot (approximately 965%) more effective at anti-aliasing than the Radeon R9 M390X, and should be capable of handling higher resolutions better. (explain)

Radeon RX 6950 XT		246400 Mpixels/sec
Radeon R9 M390X		23136 Mpixels/sec
	Difference: 223264 (965%)

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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high 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 amount of texture units by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.