Radeon HD 5870 vs Radeon R9 M280X

Intro

Compare all that to the Radeon R9 M280X, which features core speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. 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 5870		188 Watts
	Difference: 113 Watts (151%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5870 is 75% faster than the Radeon R9 M280X in general, because of its greater data rate. (explain)

Radeon HD 5870		153600 MB/sec
Radeon R9 M280X		88000 MB/sec
	Difference: 65600 (75%)

Texel Rate

The Radeon HD 5870 should be much (about 35%) more effective at AF than the Radeon R9 M280X. (explain)

Radeon HD 5870		68000 Mtexels/sec
Radeon R9 M280X		50400 Mtexels/sec
	Difference: 17600 (35%)

Pixel Rate

The Radeon HD 5870 is much (about 89%) better at FSAA than the Radeon R9 M280X, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5870		27200 Mpixels/sec
Radeon R9 M280X		14400 Mpixels/sec
	Difference: 12800 (89%)

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 information (counted in MB per second) that can be moved over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock 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 in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the clock 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.