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GeForce GTX 660 Ti vs Radeon R9 M290X

Intro

The GeForce GTX 660 Ti makes use of a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this specific card. It features 1344 SPUs as well as 112 Texture Address Units and 24 ROPs.

Compare all that to the Radeon R9 M290X, which has core clock speeds of 850 MHz on the GPU, and 1200 MHz on the 4096 MB of GDDR5 memory. It features 1280 SPUs along with 80 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X 100 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 50 Watts (50%)

Memory Bandwidth

In theory, the Radeon R9 M290X is 7% quicker than the GeForce GTX 660 Ti overall, because of its greater data rate. (explain)

Radeon R9 M290X 153600 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 9600 (7%)

Texel Rate

The GeForce GTX 660 Ti will be a lot (about 51%) more effective at anisotropic filtering than the Radeon R9 M290X. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
Radeon R9 M290X 68000 Mtexels/sec
Difference: 34480 (51%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M290X is superior to the GeForce GTX 660 Ti, by a large margin. (explain)

Radeon R9 M290X 27200 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 5240 (24%)

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 Ti

Amazon.com

Check prices at:

Radeon R9 M290X

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 Ti Radeon R9 M290X
Manufacturer nVidia AMD
Year August 2012 May 1 2014
Code Name GK104 Neptune XT
Memory 2048 MB 4096 MB
Core Speed 915 MHz 850 MHz
Memory Speed 6000 MHz 4800 MHz
Power (Max TDP) 150 watts 100 watts
Bandwidth 144000 MB/sec 153600 MB/sec
Texel Rate 102480 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 1344 1280
Texture Mapping Units 112 80
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 3540 million (Unknown) 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 max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. 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 number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 video card can possibly record to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 660 Ti

Amazon.com

Check prices at:

Radeon R9 M290X

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.

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