Radeon R9 M395X vs Radeon RX 7900 XTX

Intro

Compare all of that to the Radeon RX 7900 XTX, which has GPU clock speed of 1855 MHz, and 24576 MB of GDDR6 RAM running at 2500 MHz through a 384-bit bus. It also is made up of 6144 SPUs, 384 TAUs, and 192 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
Radeon RX 7900 XTX		355 Watts
	Difference: 230 Watts (184%)

Memory Bandwidth

In theory, the Radeon RX 7900 XTX is 514% faster than the Radeon R9 M395X overall, because of its greater data rate. (explain)

Radeon RX 7900 XTX		983040 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 823040 (514%)

Texel Rate

The Radeon RX 7900 XTX will be a lot (about 670%) better at AF than the Radeon R9 M395X. (explain)

Radeon RX 7900 XTX		712320 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 619776 (670%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 7900 XTX is superior to the Radeon R9 M395X, by far. (explain)

Radeon RX 7900 XTX		356160 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 333024 (1439%)

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 (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that are processed in one second. This number is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.