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Geforce GTX 680 vs Geforce GTX 690

Intro

The Geforce GTX 680 uses a 28 nm design. nVidia has set the core speed at 1006 MHz. The GDDR5 memory is set to run at a speed of 1502 MHz on this model. It features 1536 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Compare all that to the Geforce GTX 690, which comes with core clock speeds of 915 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 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 690 13111 points
Geforce GTX 680 7650 points
Difference: 5461 (71%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680 195 Watts
Geforce GTX 690 300 Watts
Difference: 105 Watts (54%)

Memory Bandwidth

In theory, the Geforce GTX 690 will be 100% quicker than the Geforce GTX 680 in general, due to its higher data rate. (explain)

Geforce GTX 690 384512 MB/sec
Geforce GTX 680 192256 MB/sec
Difference: 192256 (100%)

Texel Rate

The Geforce GTX 690 is much (more or less 82%) better at AF than the Geforce GTX 680. (explain)

Geforce GTX 690 234240 Mtexels/sec
Geforce GTX 680 128768 Mtexels/sec
Difference: 105472 (82%)

Pixel Rate

The Geforce GTX 690 should be quite a bit (approximately 82%) more effective at full screen anti-aliasing than the Geforce GTX 680, and also will be capable of handling higher screen resolutions without losing too much performance. (explain)

Geforce GTX 690 58560 Mpixels/sec
Geforce GTX 680 32192 Mpixels/sec
Difference: 26368 (82%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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Geforce GTX 680

Amazon.com

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Geforce GTX 690

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 680 Geforce GTX 690
Manufacturer nVidia nVidia
Year March 2012 April 2012
Code Name GK104 GK104
Memory 2048 MB 2048 MB (x2)
Core Speed 1006 MHz 915 MHz (x2)
Memory Speed 6008 MHz 6008 MHz (x2)
Power (Max TDP) 195 watts 300 watts
Bandwidth 192256 MB/sec 384512 MB/sec
Texel Rate 128768 Mtexels/sec 234240 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 58560 Mpixels/sec
Unified Shaders 1536 1536 (x2)
Texture Mapping Units 128 128 (x2)
Render Output Units 32 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit (x2)
Fab Process 28 nm 28 nm
Transistors 3540 million 3540 million
Bus PCIe 3.0 x16 PCIe 3.0 x16
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of data (in units of MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the bus width by its memory speed. In the case of DDR type RAM, it must be multiplied by 2 once 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better 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 one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Geforce GTX 680

Amazon.com

Check prices at:

Geforce GTX 690

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.

Comments

One Response to “Geforce GTX 680 vs Geforce GTX 690”
Tarjeta con 300 lucas... (precio , rendimiento) says:

[...] gtx680 de MSI N680GTX 2048MB DDR5 sera buena opcion? el precio de la gtx680 vs la 690, sera mucho? Geforce GTX 680 vs Geforce GTX 690 – Performance Comparison Benchmarks @ Hardware Compare igual al parecer, tiene HARTA diferencia, y en precio se duplica.. D: para ser franco, quiero ir [...]

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