GeForce GTX 660 Ti vs Radeon R9 270X

Intro

Compare those specs to the Radeon R9 270X, which has core clock speeds of 1000 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 memory. It features 1280 SPUs as well as 80 TAUs and 32 Rasterization Operator 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 270X		6590 points
GeForce GTX 660 Ti		6013 points
	Difference: 577 (10%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
Radeon R9 270X		180 Watts
	Difference: 30 Watts (20%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 270X is 24% quicker than the GeForce GTX 660 Ti in general, due to its greater bandwidth. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 35200 (24%)

Texel Rate

The GeForce GTX 660 Ti is much (more or less 28%) faster with regards to AF than the Radeon R9 270X. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 22480 (28%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon R9 270X is superior to the GeForce GTX 660 Ti, and very much so. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 10040 (46%)

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 data (counted in megabytes per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 number of texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics 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 the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.