Radeon R9 M270X vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which comes with a core clock frequency of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It features 2048 SPUs, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the Radeon R9 M395X should in theory be much superior to the Radeon R9 M270X in general. (explain)

Radeon R9 M395X		160000 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 88000 (122%)

Texel Rate

The Radeon R9 M395X will be a lot (more or less 219%) more effective at texture filtering than the Radeon R9 M270X. (explain)

Radeon R9 M395X		92544 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 63544 (219%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 M395X is superior to the Radeon R9 M270X, by a large margin. (explain)

Radeon R9 M395X		23136 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 11536 (99%)

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 (measured in MB per second) that can be transferred past the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units 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 per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.