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GeForce GTX 965M vs Geforce GTX 680

Intro

The GeForce GTX 965M uses a 28 nm design. nVidia has clocked the core frequency at 944 MHz. The GDDR5 RAM runs at a speed of 1000 MHz on this particular card. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

Compare that to the Geforce GTX 680, which has GPU core speed of 1006 MHz, and 2048 MB of GDDR5 memory running at 1502 MHz through a 256-bit bus. It also features 1536 SPUs, 128 TAUs, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Geforce GTX 680 7650 points
GeForce GTX 965M 5650 points
Difference: 2000 (35%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 965M 60 Watts
Geforce GTX 680 195 Watts
Difference: 135 Watts (225%)

Memory Bandwidth

Performance-wise, the Geforce GTX 680 should theoretically be quite a bit superior to the GeForce GTX 965M in general. (explain)

Geforce GTX 680 192256 MB/sec
GeForce GTX 965M 64000 MB/sec
Difference: 128256 (200%)

Texel Rate

The Geforce GTX 680 is much (approximately 113%) more effective at anisotropic filtering than the GeForce GTX 965M. (explain)

Geforce GTX 680 128768 Mtexels/sec
GeForce GTX 965M 60416 Mtexels/sec
Difference: 68352 (113%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 680 is superior to the GeForce GTX 965M, but only just. (explain)

Geforce GTX 680 32192 Mpixels/sec
GeForce GTX 965M 30208 Mpixels/sec
Difference: 1984 (7%)

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 965M

Amazon.com

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Geforce GTX 680

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 965M Geforce GTX 680
Manufacturer nVidia nVidia
Year January 5 2015 March 2012
Code Name GM204 GK104
Memory 2048 MB 2048 MB
Core Speed 944 MHz 1006 MHz
Memory Speed 4000 MHz 6008 MHz
Power (Max TDP) 60 watts 195 watts
Bandwidth 64000 MB/sec 192256 MB/sec
Texel Rate 60416 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 30208 Mpixels/sec 32192 Mpixels/sec
Unified Shaders 1024 1536
Texture Mapping Units 64 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 28 nm 28 nm
Transistors (Unknown) million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 12 DirectX 11.0
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR type RAM, the result 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better 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 its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 965M

Amazon.com

Check prices at:

Geforce GTX 680

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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