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GeForce GTX 660 vs Radeon R9 270X

Intro

The GeForce GTX 660 uses a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 RAM runs at a speed of 1502 MHz on this specific card. It features 960 SPUs as well as 80 TAUs and 24 ROPs.

Compare those specs to the Radeon R9 270X, which uses a 28 nm design. AMD has clocked the core speed at 1000 MHz. The GDDR5 RAM is set to run at a frequency of 1400 MHz on this card. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

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

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

The Radeon R9 270X should in theory perform quite a bit 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 will be a small bit (more or less 2%) better at AF than the GeForce GTX 660. (explain)

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

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon R9 270X is the winner, and very much so. (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

Check prices at:

Radeon R9 270X

Amazon.com

Check prices at:

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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. If it uses DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

GeForce GTX 660

Amazon.com

Check prices at:

Radeon R9 270X

Amazon.com

Check prices at:

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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