GeForce GTX 660 vs Radeon R9 270X

Intro

Compare those specifications 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 RAM. It features 1280 SPUs along with 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		5063 points
	Difference: 1527 (30%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660		140 Watts
Radeon R9 270X		180 Watts
	Difference: 40 Watts (29%)

Memory Bandwidth

Theoretically, the Radeon R9 270X should perform a lot faster than the GeForce GTX 660 in general. (explain)

Radeon R9 270X		179200 MB/sec
GeForce GTX 660		144192 MB/sec
	Difference: 35008 (24%)

Texel Rate

The Radeon R9 270X should be a bit (approximately 2%) faster with regards to texture filtering than the GeForce GTX 660. (explain)

Radeon R9 270X		80000 Mtexels/sec
GeForce GTX 660		78400 Mtexels/sec
	Difference: 1600 (2%)

Pixel Rate

The Radeon R9 270X should be quite a bit (about 36%) better at FSAA than the GeForce GTX 660, and also able to handle higher screen resolutions while still performing well. (explain)

Radeon R9 270X		32000 Mpixels/sec
GeForce GTX 660		23520 Mpixels/sec
	Difference: 8480 (36%)

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 (in units of megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.