Radeon R9 M395X vs Radeon RX 6800 XT

Intro

Compare those specifications to the Radeon RX 6800 XT, which makes use of a 7 nm design. AMD has clocked the core speed at 1825 MHz. The GDDR6 memory runs at a speed of 2000 MHz on this specific model. It features 4608 SPUs as well as 288 TAUs and 128 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M395X		125 Watts
Radeon RX 6800 XT		300 Watts
	Difference: 175 Watts (140%)

Memory Bandwidth

In theory, the Radeon RX 6800 XT should be 228% faster than the Radeon R9 M395X in general, due to its higher data rate. (explain)

Radeon RX 6800 XT		524288 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 364288 (228%)

Texel Rate

The Radeon RX 6800 XT is a lot (more or less 468%) better at texture filtering than the Radeon R9 M395X. (explain)

Radeon RX 6800 XT		525600 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 433056 (468%)

Pixel Rate

The Radeon RX 6800 XT will be much (about 910%) better at AA than the Radeon R9 M395X, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 6800 XT		233600 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 210464 (910%)

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 megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are applied in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.