Radeon R7 M260X vs Radeon R9 285

Intro

Compare that to the Radeon R9 285, which makes use of a 28 nm design. AMD has clocked the core frequency at 918 MHz. The GDDR5 memory runs at a speed of 1375 MHz on this specific card. It features 1792 SPUs as well as 112 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon R9 285 should be quite a bit faster than the Radeon R7 M260X in general. (explain)

Radeon R9 285		176000 MB/sec
Radeon R7 M260X		64000 MB/sec
	Difference: 112000 (175%)

Texel Rate

The Radeon R9 285 will be quite a bit (more or less 419%) faster with regards to AF than the Radeon R7 M260X. (explain)

Radeon R9 285		102816 Mtexels/sec
Radeon R7 M260X		19800 Mtexels/sec
	Difference: 83016 (419%)

Pixel Rate

The Radeon R9 285 should be a lot (about 345%) more effective at full screen anti-aliasing than the Radeon R7 M260X, and will be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 285		29376 Mpixels/sec
Radeon R7 M260X		6600 Mpixels/sec
	Difference: 22776 (345%)

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 max amount of information (counted in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.