GeForce GTX 660 Ti vs Radeon R9 270

Intro

Compare those specs to the Radeon R9 270, which comes with clock speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs along with 80 TAUs and 32 Rasterization Operator Units.

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

GeForce GTX 660 Ti		6013 points
Radeon R9 270		5943 points
	Difference: 70 (1%)

Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

Theoretically speaking, the Radeon R9 270 should perform much faster than the GeForce GTX 660 Ti overall. (explain)

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

Texel Rate

The GeForce GTX 660 Ti should be a lot (more or less 42%) more effective at anisotropic filtering than the Radeon R9 270. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
Radeon R9 270		72000 Mtexels/sec
	Difference: 30480 (42%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 270 is superior to the GeForce GTX 660 Ti, by far. (explain)

Radeon R9 270		28800 Mpixels/sec
GeForce GTX 660 Ti		21960 Mpixels/sec
	Difference: 6840 (31%)

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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that can be processed 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 higher this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.