GeForce GTX 660 Ti vs Radeon R9 380X

Intro

Compare all of that to the Radeon R9 380X, which has a clock speed of 970 MHz and a GDDR5 memory frequency of 1425 MHz. It also features a 256-bit memory bus, and makes use of a 28 nm design. It is comprised of 2048 SPUs, 128 Texture Address Units, 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 380X		9519 points
GeForce GTX 660 Ti		6013 points
	Difference: 3506 (58%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon R9 380X		190 Watts
	Difference: 40 Watts (27%)

Memory Bandwidth

Theoretically, the Radeon R9 380X should perform quite a bit faster than the GeForce GTX 660 Ti overall. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 38400 (27%)

Texel Rate

The Radeon R9 380X should be quite a bit (more or less 21%) more effective at anisotropic filtering than the GeForce GTX 660 Ti. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GTX 660 Ti		102480 Mtexels/sec
	Difference: 21680 (21%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon R9 380X is the winner, by a large margin. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 9080 (41%)

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 max amount of information (in units of MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster 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 in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the 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 amount of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.