Radeon R7 260X vs Radeon R9 285

Intro

Compare those specifications to the Radeon R9 285, which features a GPU core clock speed of 918 MHz, and 2048 MB of GDDR5 memory set to run at 1375 MHz through a 256-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon R9 285		8500 points
Radeon R7 260X		4381 points
	Difference: 4119 (94%)

Ethereum Mining Hash Rate

Radeon R9 285		18 Mh/s
Radeon R7 260X		14 Mh/s
	Difference: 4 (29%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 260X		115 Watts
Radeon R9 285		190 Watts
	Difference: 75 Watts (65%)

Memory Bandwidth

The Radeon R9 285, in theory, should perform quite a bit faster than the Radeon R7 260X overall. (explain)

Radeon R9 285		176000 MB/sec
Radeon R7 260X		104000 MB/sec
	Difference: 72000 (69%)

Texel Rate

The Radeon R9 285 should be much (about 67%) better at anisotropic filtering than the Radeon R7 260X. (explain)

Radeon R9 285		102816 Mtexels/sec
Radeon R7 260X		61600 Mtexels/sec
	Difference: 41216 (67%)

Pixel Rate

The Radeon R9 285 should be a lot (about 67%) better at full screen anti-aliasing than the Radeon R7 260X, and should be capable of handling higher resolutions without slowing down too much. (explain)

Radeon R9 285		29376 Mpixels/sec
Radeon R7 260X		17600 Mpixels/sec
	Difference: 11776 (67%)

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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, 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 processed per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the clock 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 lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.