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Geforce GTX 680 vs Geforce GTX 780

Intro

The Geforce GTX 680 features a GPU core speed of 1006 MHz, and the 2048 MB of GDDR5 memory runs at 1502 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 128 TAUs, and 32 ROPs.

Compare all of that to the Geforce GTX 780, which comes with core clock speeds of 863 MHz on the GPU, and 1502 MHz on the 3072 MB of GDDR5 RAM. It features 2304 SPUs along with 192 TAUs and 48 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 780 10082 points
Geforce GTX 680 7650 points
Difference: 2432 (32%)

Grand Theft Auto V | 1920x1080 | Very High

Geforce GTX 780 48 FPS
Geforce GTX 680 38 FPS
Difference: 10 (26%)

Ethereum Mining Hash Rate

Geforce GTX 780 20 Mh/s
Geforce GTX 680 16 Mh/s
Difference: 4 (25%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680 195 Watts
Geforce GTX 780 250 Watts
Difference: 55 Watts (28%)

Memory Bandwidth

Performance-wise, the Geforce GTX 780 should in theory be much better than the Geforce GTX 680 overall. (explain)

Geforce GTX 780 288384 MB/sec
Geforce GTX 680 192256 MB/sec
Difference: 96128 (50%)

Texel Rate

The Geforce GTX 780 will be a lot (about 29%) faster with regards to texture filtering than the Geforce GTX 680. (explain)

Geforce GTX 780 165696 Mtexels/sec
Geforce GTX 680 128768 Mtexels/sec
Difference: 36928 (29%)

Pixel Rate

The Geforce GTX 780 should be much (approximately 29%) better at FSAA than the Geforce GTX 680, and should be capable of handling higher resolutions without slowing down too much. (explain)

Geforce GTX 780 41424 Mpixels/sec
Geforce GTX 680 32192 Mpixels/sec
Difference: 9232 (29%)

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 680

Amazon.com

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Geforce GTX 780

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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 680 Geforce GTX 780
Manufacturer nVidia nVidia
Year March 2012 May 2013
Code Name GK104 GK110
Memory 2048 MB 3072 MB
Core Speed 1006 MHz 863 MHz
Memory Speed 6008 MHz 6008 MHz
Power (Max TDP) 195 watts 250 watts
Bandwidth 192256 MB/sec 288384 MB/sec
Texel Rate 128768 Mtexels/sec 165696 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 41424 Mpixels/sec
Unified Shaders 1536 2304
Texture Mapping Units 128 192
Render Output Units 32 48
Bus Type GDDR5 GDDR5
Bus Width 256-bit 384-bit
Fab Process 28 nm 28 nm
Transistors 3540 million 7080 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface in a second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Geforce GTX 680

Amazon.com

Check prices at:

Geforce GTX 780

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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