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GeForce GTX 660 vs Geforce GTX 760

Intro

The GeForce GTX 660 comes with core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 960 SPUs as well as 80 Texture Address Units and 24 Rasterization Operator Units.

Compare those specifications to the Geforce GTX 760, which comes with a GPU core clock speed of 980 MHz, and 2048 MB of GDDR5 memory set to run at 1502 MHz through a 256-bit bus. It also is comprised of 1152 Stream Processors, 96 TAUs, and 32 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 140 Watts
Geforce GTX 760 170 Watts
Difference: 30 Watts (21%)

Memory Bandwidth

The Geforce GTX 760 should theoretically perform a lot faster than the GeForce GTX 660 in general. (explain)

Geforce GTX 760 192256 MB/sec
GeForce GTX 660 144192 MB/sec
Difference: 48064 (33%)

Texel Rate

The Geforce GTX 760 should be a bit (approximately 20%) better at texture filtering than the GeForce GTX 660. (explain)

Geforce GTX 760 94080 Mtexels/sec
GeForce GTX 660 78400 Mtexels/sec
Difference: 15680 (20%)

Pixel Rate

The Geforce GTX 760 will be much (about 33%) better at full screen anti-aliasing than the GeForce GTX 660, and also should be able to handle higher resolutions without losing too much performance. (explain)

Geforce GTX 760 31360 Mpixels/sec
GeForce GTX 660 23520 Mpixels/sec
Difference: 7840 (33%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

GeForce GTX 660

Amazon.com

Other US-based stores

Geforce GTX 760

Amazon.com

Other US-based stores

Specifications

Model GeForce GTX 660 Geforce GTX 760
Manufacturer nVidia nVidia
Year September 2012 June 2013
Code Name GK106 GK104
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 2048 MB
Core Speed 980 MHz 980 MHz
Shader Speed 980 MHz 980 MHz
Memory Speed 1502 MHz (6008 MHz effective) 1502 MHz (6008 MHz effective)
Unified Shaders 960 1152
Texture Mapping Units 80 96
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
DirectX Version DirectX 11.1 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.3
Power (Max TDP) 140 watts 170 watts
Shader Model 5.0 5.0
Bandwidth 144192 MB/sec 192256 MB/sec
Texel Rate 78400 Mtexels/sec 94080 Mtexels/sec
Pixel Rate 23520 Mpixels/sec 31360 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can 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 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 quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

2 Responses to “GeForce GTX 660 vs Geforce GTX 760”
Schaumstoff says:
The gtx 760 is a lot more expensive but I think it is worth it.
Dat guy says:
At current UK prices the 760 is around 30 pounds more expensive than the 660 and I'd be happy to spend that much for the performance gain.

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