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GeForce GTX 660 Ti vs Radeon R9 M295X

Intro

The GeForce GTX 660 Ti uses a 28 nm design. nVidia has clocked the core speed at 915 MHz. The GDDR5 RAM is set to run at a speed of 1500 MHz on this model. It features 1344 SPUs as well as 112 TAUs and 24 ROPs.

Compare those specifications to the Radeon R9 M295X, which has core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M295X 125 Watts
GeForce GTX 660 Ti 150 Watts
Difference: 25 Watts (20%)

Memory Bandwidth

In theory, the Radeon R9 M295X should be 22% quicker than the GeForce GTX 660 Ti in general, due to its higher bandwidth. (explain)

Radeon R9 M295X 176000 MB/sec
GeForce GTX 660 Ti 144000 MB/sec
Difference: 32000 (22%)

Texel Rate

The GeForce GTX 660 Ti should be a bit (about 7%) faster with regards to texture filtering than the Radeon R9 M295X. (explain)

GeForce GTX 660 Ti 102480 Mtexels/sec
Radeon R9 M295X 96000 Mtexels/sec
Difference: 6480 (7%)

Pixel Rate

The Radeon R9 M295X should be a little bit (more or less 9%) more effective at full screen anti-aliasing than the GeForce GTX 660 Ti, and also will be able to handle higher resolutions more effectively. (explain)

Radeon R9 M295X 24000 Mpixels/sec
GeForce GTX 660 Ti 21960 Mpixels/sec
Difference: 2040 (9%)

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 M295X

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 M295X
Manufacturer nVidia AMD
Year August 2012 2014
Code Name GK104 Unknown
Memory 2048 MB 4096 MB
Core Speed 915 MHz 750 MHz
Memory Speed 6000 MHz 5500 MHz
Power (Max TDP) 150 watts 125 watts
Bandwidth 144000 MB/sec 176000 MB/sec
Texel Rate 102480 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 21960 Mpixels/sec 24000 Mpixels/sec
Unified Shaders 1344 2048
Texture Mapping Units 112 128
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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, 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 the video card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 660 Ti

Amazon.com

Check prices at:

Radeon R9 M295X

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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