Radeon R9 M280X vs Radeon RX 480 4GB

Intro

Compare those specifications to the Radeon RX 480 4GB, which features core clock speeds of 1120 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 RAM. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 480 4GB is 161% quicker than the Radeon R9 M280X in general, due to its higher data rate. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 141376 (161%)

Texel Rate

The Radeon RX 480 4GB should be a lot (approximately 220%) faster with regards to anisotropic filtering than the Radeon R9 M280X. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 110880 (220%)

Pixel Rate

The Radeon RX 480 4GB is much (about 149%) faster with regards to AA than the Radeon R9 M280X, and capable of handling higher resolutions better. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 21440 (149%)

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 largest amount of information (measured in megabytes per second) that can be moved past the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 once 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 anti-aliasing, 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.