GeForce GTX 660 Ti vs Radeon R9 285

Intro

Compare all of that to the Radeon R9 285, which has 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 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

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
GeForce GTX 660 Ti		6013 points
	Difference: 2487 (41%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon R9 285		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

In theory, the Radeon R9 285 should perform much faster than the GeForce GTX 660 Ti overall. (explain)

Radeon R9 285		176000 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 32000 (22%)

Texel Rate

The Radeon R9 285 will be just a bit (more or less 0%) more effective at AF than the GeForce GTX 660 Ti. (explain)

Radeon R9 285		102816 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 336 (0%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 285 is the winner, by far. (explain)

Radeon R9 285		29376 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 7416 (34%)

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 data (counted in MB per second) that can be transferred over the external memory interface in one second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.