Radeon HD 5770 vs Radeon R9 M280X

Intro

Compare all that to the Radeon R9 M280X, which features clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M280X		75 Watts
Radeon HD 5770		108 Watts
	Difference: 33 Watts (44%)

Memory Bandwidth

The Radeon R9 M280X should in theory be a little bit faster than the Radeon HD 5770 in general. (explain)

Radeon R9 M280X		88000 MB/sec
Radeon HD 5770		76800 MB/sec
	Difference: 11200 (15%)

Texel Rate

The Radeon R9 M280X will be much (approximately 48%) better at texture filtering than the Radeon HD 5770. (explain)

Radeon R9 M280X		50400 Mtexels/sec
Radeon HD 5770		34000 Mtexels/sec
	Difference: 16400 (48%)

Pixel Rate

The Radeon R9 M280X will be a little bit (approximately 6%) faster with regards to anti-aliasing than the Radeon HD 5770, and capable of handling higher resolutions while still performing well. (explain)

Radeon R9 M280X		14400 Mpixels/sec
Radeon HD 5770		13600 Mpixels/sec
	Difference: 800 (6%)

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 (measured in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR memory, it must 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This figure is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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 max fill rate.