GeForce GTX 660 Ti vs Radeon RX 480

Intro

Compare those specifications to the Radeon RX 480, which has core speeds of 1120 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 memory. It features 2304 SPUs as well as 144 TAUs 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 RX 480		13349 points
GeForce GTX 660 Ti		6013 points
	Difference: 7336 (122%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

In theory, the Radeon RX 480 is 82% quicker than the GeForce GTX 660 Ti overall, due to its higher bandwidth. (explain)

Radeon RX 480		262144 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 118144 (82%)

Texel Rate

The Radeon RX 480 is quite a bit (more or less 57%) better at anisotropic filtering than the GeForce GTX 660 Ti. (explain)

Radeon RX 480		161280 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 58800 (57%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 480 is the winner, by a large margin. (explain)

Radeon RX 480		35840 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 13880 (63%)

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 megabytes per second) that can be transferred over the external memory interface within a second. It's calculated 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 memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total amount of 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 per second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.