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GeForce GTX 660 vs Geforce GTX 760

Intro

The GeForce GTX 660 has 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 specs to the Geforce GTX 760, which features a core clock speed of 980 MHz and a GDDR5 memory frequency of 1502 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It features 1152 SPUs, 96 Texture Address Units, and 32 ROPs.

(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

As far as performance goes, the Geforce GTX 760 should theoretically be much better than the GeForce GTX 660 overall. (explain)

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

Texel Rate

The Geforce GTX 760 will be just 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 should be much (about 33%) faster with regards to anti-aliasing than the GeForce GTX 660, and will be capable of handling higher resolutions while still performing well. (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

GeForce GTX 660

Amazon.com

Geforce GTX 760

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

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 11.0 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 maximum amount of information (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock 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 fill rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Comments

6 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.
Jessy says:
I shouldv'e gotten this 760. But at the time, I just needed a new GPU when mine was a 610... -_- But I do intend to get a new one soon so we'll see. :)
Raj says:
Anybody thinking that 760 will give a performance edge enough to justify the price difference certainly does not knows anything about Graphic Cards
@Raj says:
I think that you don't know anything about graphics cards
KHAWAR ZAMAN says:
192bit can not run more games in 1080p setting. lol

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