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GeForce GTX 970 vs Geforce GTX 680

Intro

The GeForce GTX 970 has a clock frequency of 1050 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 256-bit bus, and makes use of a 28 nm design. It is made up of 1664 SPUs, 104 TAUs, and 64 Raster Operation Units.

Compare those specs to the Geforce GTX 680, which features clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs along with 128 Texture Address Units 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 970 10867 points
Geforce GTX 680 7650 points
Difference: 3217 (42%)

Ethereum Mining Hash Rate

GeForce GTX 970 19 Mh/s
Geforce GTX 680 16 Mh/s
Difference: 3 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970 145 Watts
Geforce GTX 680 195 Watts
Difference: 50 Watts (34%)

Memory Bandwidth

Performance-wise, the GeForce GTX 970 should in theory be a little bit better than the Geforce GTX 680 overall. (explain)

GeForce GTX 970 224000 MB/sec
Geforce GTX 680 192256 MB/sec
Difference: 31744 (17%)

Texel Rate

The Geforce GTX 680 will be a small bit (more or less 18%) more effective at AF than the GeForce GTX 970. (explain)

Geforce GTX 680 128768 Mtexels/sec
GeForce GTX 970 109200 Mtexels/sec
Difference: 19568 (18%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 970 is the winner, and very much so. (explain)

GeForce GTX 970 67200 Mpixels/sec
Geforce GTX 680 32192 Mpixels/sec
Difference: 35008 (109%)

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 970

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 970 Geforce GTX 680
Manufacturer nVidia nVidia
Year September 2014 March 2012
Code Name GM204-200 GK104
Memory 4096 MB 2048 MB
Core Speed 1050 MHz 1006 MHz
Memory Speed 7000 MHz 6008 MHz
Power (Max TDP) 145 watts 195 watts
Bandwidth 224000 MB/sec 192256 MB/sec
Texel Rate 109200 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 67200 Mpixels/sec 32192 Mpixels/sec
Unified Shaders 1664 1536
Texture Mapping Units 104 128
Render Output Units 64 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 28 nm 28 nm
Transistors 5200 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.2 DirectX 11.0
OpenGL Version OpenGL 4.5 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory 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 better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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GeForce GTX 970

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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