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GeForce GTX 660 vs Radeon R9 270X

Intro

The GeForce GTX 660 uses a 28 nm design. nVidia has set the core frequency at 980 MHz. The GDDR5 RAM is set to run at a frequency of 1502 MHz on this specific model. It features 960 SPUs as well as 80 Texture Address Units and 24 Rasterization Operator Units.

Compare all of that to the Radeon R9 270X, which uses a 28 nm design. AMD has set the core speed at 1000 MHz. The GDDR5 RAM works at a speed of 1400 MHz on this specific model. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

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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 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

As far as performance goes, the Radeon R9 270X should in theory be quite a bit better than the GeForce GTX 660 overall. (explain)

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

Texel Rate

The Radeon R9 270X is a small bit (approximately 2%) faster with regards to AF 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 will be much (about 36%) more effective at anti-aliasing than the GeForce GTX 660, and also should be capable of handling higher screen resolutions without losing too much performance. (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

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GeForce GTX 660

Amazon.com

Radeon R9 270X

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 660 Radeon R9 270X
Manufacturer nVidia AMD
Year September 2012 October 2013
Code Name GK106 Curacao XT
Memory 2048 MB 2048 MB
Core Speed 980 MHz 1000 MHz
Memory Speed 6008 MHz 5600 MHz
Power (Max TDP) 140 watts 180 watts
Bandwidth 144192 MB/sec 179200 MB/sec
Texel Rate 78400 Mtexels/sec 80000 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 32000 Mpixels/sec
Unified Shaders 960 1280
Texture Mapping Units 80 80
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 2800 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.2
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved past the external memory interface within a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 most pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output 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 max fill rate.

Display Prices

Hide Prices

GeForce GTX 660

Amazon.com

Radeon R9 270X

Amazon.com

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

3 Responses to “GeForce GTX 660 vs Radeon R9 270X”
Юрий says:

Я вр рот ебал

Анон says:

Пизданул как Господь.

Jonny says:

Jedite govna sa mencmarkom.

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