Radeon R9 270X vs Radeon R9 M290X

Intro

Compare those specs to the Radeon R9 M290X, which uses a 28 nm design. AMD has set the core speed at 850 MHz. The GDDR5 RAM is set to run at a speed of 1200 MHz on this particular model. It features 1280 SPUs as well as 80 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X		100 Watts
Radeon R9 270X		180 Watts
	Difference: 80 Watts (80%)

Memory Bandwidth

In theory, the Radeon R9 270X should be a little bit faster than the Radeon R9 M290X in general. (explain)

Radeon R9 270X		179200 MB/sec
Radeon R9 M290X		153600 MB/sec
	Difference: 25600 (17%)

Texel Rate

The Radeon R9 270X will be a bit (approximately 18%) faster with regards to texture filtering than the Radeon R9 M290X. (explain)

Radeon R9 270X		80000 Mtexels/sec
Radeon R9 M290X		68000 Mtexels/sec
	Difference: 12000 (18%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 270X is the winner, but only just. (explain)

Radeon R9 270X		32000 Mpixels/sec
Radeon R9 M290X		27200 Mpixels/sec
	Difference: 4800 (18%)

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 (in units of MB per second) that can be transferred past the external memory interface within a second. The number is calculated by multiplying the bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster 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 can be processed in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

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