Radeon R9 M270X vs Radeon RX 470

Intro

Compare those specs to the Radeon RX 470, which comes with core clock speeds of 926 MHz on the GPU, and 1650 MHz on the 8192 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon RX 470 should perform a lot faster than the Radeon R9 M270X in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon R9 M270X		72000 MB/sec
	Difference: 139200 (193%)

Texel Rate

The Radeon RX 470 is much (more or less 309%) more effective at texture filtering than the Radeon R9 M270X. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 M270X		29000 Mtexels/sec
	Difference: 89528 (309%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 470 is superior to the Radeon R9 M270X, by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon R9 M270X		11600 Mpixels/sec
	Difference: 18032 (155%)

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 megabytes per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total number of texture units 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 in one second.

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