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GeForce GTX 970 vs Geforce GTX 680

Intro

The GeForce GTX 970 makes use of a 28 nm design. nVidia has clocked the core frequency at 1050 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this specific card. It features 1664 SPUs along with 104 TAUs and 64 ROPs.

Compare all that to the Geforce GTX 680, which features core 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 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 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

In theory, the GeForce GTX 970 will be 17% faster than the Geforce GTX 680 in general, due to its greater data rate. (explain)

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

Texel Rate

The Geforce GTX 680 should be a bit (approximately 18%) more effective at texture filtering than the GeForce GTX 970. (explain)

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

Pixel Rate

The GeForce GTX 970 is much (more or less 109%) faster with regards to full screen anti-aliasing than the Geforce GTX 680, and will be capable of handling higher resolutions more effectively. (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: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum 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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