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GeForce 8800 GTX vs Geforce GTX 680


The GeForce 8800 GTX comes with a core clock speed of 575 MHz and a GDDR3 memory frequency of 900 MHz. It also uses a 384-bit bus, and uses a 90 nm design. It features 128 SPUs, 64 Texture Address Units, and 24 ROPs.

Compare all of that to the Geforce GTX 680, which comes with a GPU core clock speed of 1006 MHz, and 2048 MB of GDDR5 memory running at 1502 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTX 155 Watts
Geforce GTX 680 195 Watts
Difference: 40 Watts (26%)

Memory Bandwidth

Theoretically, the Geforce GTX 680 should perform quite a bit faster than the GeForce 8800 GTX in general. (explain)

Geforce GTX 680 192256 MB/sec
GeForce 8800 GTX 86400 MB/sec
Difference: 105856 (123%)

Texel Rate

The Geforce GTX 680 should be much (more or less 250%) better at texture filtering than the GeForce 8800 GTX. (explain)

Geforce GTX 680 128768 Mtexels/sec
GeForce 8800 GTX 36800 Mtexels/sec
Difference: 91968 (250%)

Pixel Rate

If using a high resolution is important to you, then the Geforce GTX 680 is the winner, by a large margin. (explain)

Geforce GTX 680 32192 Mpixels/sec
GeForce 8800 GTX 13800 Mpixels/sec
Difference: 18392 (133%)

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 8800 GTX

Geforce GTX 680

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.


Display Specifications

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Model GeForce 8800 GTX Geforce GTX 680
Manufacturer nVidia nVidia
Year Nov 2006 March 2012
Code Name G80 GK104
Memory 768 MB 2048 MB
Core Speed 575 MHz 1006 MHz
Memory Speed 1800 MHz 6008 MHz
Power (Max TDP) 155 watts 195 watts
Bandwidth 86400 MB/sec 192256 MB/sec
Texel Rate 36800 Mtexels/sec 128768 Mtexels/sec
Pixel Rate 13800 Mpixels/sec 32192 Mpixels/sec
Unified Shaders 128 1536
Texture Mapping Units 64 128
Render Output Units 24 32
Bus Type GDDR3 GDDR5
Bus Width 384-bit 256-bit
Fab Process 90 nm 28 nm
Transistors 681 million 3540 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 10 DirectX 11.0
OpenGL Version OpenGL 3.0 OpenGL 4.2

Memory Bandwidth: Memory bandwidth is the maximum amount of data (measured in MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.


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