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GeForce GTX 650 Ti 2GB vs GeForce GTX 660

Intro

The GeForce GTX 650 Ti 2GB comes with core clock speeds of 928 MHz on the GPU, and 1350 MHz on the 2048 MB of GDDR5 RAM. It features 768 SPUs along with 64 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the GeForce GTX 660, which makes use of a 28 nm design. nVidia has clocked the core frequency at 980 MHz. The GDDR5 memory works at a speed of 1502 MHz on this specific card. It features 960 SPUs along with 80 TAUs and 24 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB 110 Watts
GeForce GTX 660 140 Watts
Difference: 30 Watts (27%)

Memory Bandwidth

The GeForce GTX 660, in theory, should perform quite a bit faster than the GeForce GTX 650 Ti 2GB overall. (explain)

GeForce GTX 660 144192 MB/sec
GeForce GTX 650 Ti 2GB 86400 MB/sec
Difference: 57792 (67%)

Texel Rate

The GeForce GTX 660 will be much (more or less 32%) more effective at anisotropic filtering than the GeForce GTX 650 Ti 2GB. (explain)

GeForce GTX 660 78400 Mtexels/sec
GeForce GTX 650 Ti 2GB 59392 Mtexels/sec
Difference: 19008 (32%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX 660 is the winner, by a large margin. (explain)

GeForce GTX 660 23520 Mpixels/sec
GeForce GTX 650 Ti 2GB 14848 Mpixels/sec
Difference: 8672 (58%)

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 650 Ti 2GB

Amazon.com

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GeForce GTX 660

Amazon.com

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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 650 Ti 2GB GeForce GTX 660
Manufacturer nVidia nVidia
Year October 2012 September 2012
Code Name GK106 GK106
Memory 2048 MB 2048 MB
Core Speed 928 MHz 980 MHz
Memory Speed 5400 MHz 6008 MHz
Power (Max TDP) 110 watts 140 watts
Bandwidth 86400 MB/sec 144192 MB/sec
Texel Rate 59392 Mtexels/sec 78400 Mtexels/sec
Pixel Rate 14848 Mpixels/sec 23520 Mpixels/sec
Unified Shaders 768 960
Texture Mapping Units 64 80
Render Output Units 16 24
Bus Type GDDR5 GDDR5
Bus Width 128-bit 192-bit
Fab Process 28 nm 28 nm
Transistors 2540 million 2540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.3 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its 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 card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 650 Ti 2GB

Amazon.com

Check prices at:

GeForce GTX 660

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

6 Responses to “GeForce GTX 650 Ti 2GB vs GeForce GTX 660”
nikolaj says:

what is the different between the two graphic cards? i dont know. and im going to buy the GTX 650 TI 2 GB and my friend got the other card. So i just wanna know what is best, and why?! 😀

YO! says:

The gtx-660 is better in general so i think there is no need for an thorough explaination.

robert says:

why you havent gtx650 ti boost? its not too much weaker that gtx 660 and a littre cheaper for sure its better that 650 ti and can be used in sli

Izzy Rallins says:

As of 12/23/ there are no 660ti's in the price range of the 760's. You can get a 660 FTW at newegg for $239.99 but the 760 is the same exact price.

nVidia is doing just like Intel and reaming us with prices. I got a gtx 260 in 2010 for $180 and despite all that time I have to shell out $200 for a faster card. Any card like the GTX 650 that is less than $200 is SLOWER than the card I bought 4 years ago.

And it doesn't matter.... 660ti... 760... you aren't really going to find a "deal" on any of them. You'd think after a new line of cards they would go down in price!!!!!

Izzy Rallins says:

DO NOT buy the 650 get the 660 or 760 is my point really. The 650 (Or ANY card under $180) will be SLOWER than the previous generations of cards (ie 260 460, etc)

Bend over and let your wallet get fucked.

You;d think after all this time I could get a card that outperforms the 260 for less than $150.....

wanda says:

Would you please add the GTX 650 TI Boost?

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