Radeon R9 M395X vs Radeon RX 460

Intro

Compare those specifications to the Radeon RX 460, which has a core clock speed of 1090 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 128-bit bus, and makes use of a 14 nm design. It is made up of 896 SPUs, 56 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon R9 M395X		125 Watts
	Difference: 50 Watts (67%)

Memory Bandwidth

In theory, the Radeon R9 M395X should be 43% quicker than the Radeon RX 460 in general, because of its greater data rate. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 48000 (43%)

Texel Rate

The Radeon R9 M395X should be quite a bit (about 52%) better at anisotropic filtering than the Radeon RX 460. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 31504 (52%)

Pixel Rate

The Radeon R9 M395X should be much (about 33%) faster with regards to anti-aliasing than the Radeon RX 460, and also should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 5696 (33%)

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 maximum amount of data (counted in MB per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number 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 quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.