Radeon R9 M270X vs Radeon R9 M395X

Intro

Compare those specifications to the Radeon R9 M395X, which has a core clock frequency of 723 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit bus, and uses a 28 nm design. It features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically, the Radeon R9 M395X should be much faster than 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 much (more or less 219%) faster with regards to AF than the Radeon R9 M270X. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 M395X is a better choice, and very much so. (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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 filling the screen with pixels (the image). The actual pixel output rate is also dependant 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.