Radeon R9 M395X vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which comes with a core clock speed of 926 MHz and a GDDR5 memory frequency of 1650 MHz. It also makes use of a 256-bit bus, and uses a 14 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon R9 M395X		125 Watts
	Difference: 5 Watts (4%)

Memory Bandwidth

The Radeon RX 470 should theoretically be much faster than the Radeon R9 M395X in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon R9 M395X		160000 MB/sec
	Difference: 51200 (32%)

Texel Rate

The Radeon RX 470 should be much (more or less 28%) better at texture filtering than the Radeon R9 M395X. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 M395X		92544 Mtexels/sec
	Difference: 25984 (28%)

Pixel Rate

The Radeon RX 470 is much (approximately 28%) more effective at FSAA than the Radeon R9 M395X, and should be able to handle higher resolutions more effectively. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon R9 M395X		23136 Mpixels/sec
	Difference: 6496 (28%)

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 information (measured in MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.