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Geforce GTX 680 vs Geforce GTX 760

Intro

The Geforce GTX 680 has a GPU clock speed of 1006 MHz, and the 2048 MB of GDDR5 RAM is set to run at 1502 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Compare all that to the Geforce GTX 760, which features a core clock frequency of 980 MHz and a GDDR5 memory speed of 1502 MHz. It also makes use of a 256-bit bus, and makes use of a 28 nm design. It is comprised of 1152 SPUs, 96 Texture Address Units, and 32 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760 170 Watts
Geforce GTX 680 195 Watts
Difference: 25 Watts (15%)

Memory Bandwidth

Both cards have exactly the same memory bandwidth, so in theory they should have identical performance. (explain)

Texel Rate

The Geforce GTX 680 is a lot (approximately 37%) faster with regards to anisotropic filtering than the Geforce GTX 760. (explain)

Geforce GTX 680 128768 Mtexels/sec
Geforce GTX 760 94080 Mtexels/sec
Difference: 34688 (37%)

Pixel Rate

The Geforce GTX 680 should be just a bit (about 3%) faster with regards to anti-aliasing than the Geforce GTX 760, and also should be capable of handling higher resolutions without slowing down too much. (explain)

Geforce GTX 680 32192 Mpixels/sec
Geforce GTX 760 31360 Mpixels/sec
Difference: 832 (3%)

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

Geforce GTX 680

Amazon.com

Geforce GTX 760

Amazon.com

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

Model Geforce GTX 680 Geforce GTX 760
Manufacturer nVidia nVidia
Year March 2012 June 2013
Code Name GK104 GK104
Fab Process 28 nm 28 nm
Bus PCIe 3.0 x16 PCIe 3.0 x16
Memory 2048 MB 2048 MB
Core Speed 1006 MHz 980 MHz
Shader Speed 1006 MHz 980 MHz
Memory Speed 1502 MHz (6008 MHz effective) 1502 MHz (6008 MHz effective)
Unified Shaders 1536 1152
Texture Mapping Units 128 96
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11.0 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.3
Power (Max TDP) 195 watts 170 watts
Shader Model 5.0 5.0
Bandwidth 192256 MB/sec 192256 MB/sec
Texel Rate 128768 Mtexels/sec 94080 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 31360 Mpixels/sec

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Comments

2 Responses to “Geforce GTX 680 vs Geforce GTX 760”
biudsfrd says:
but thats not right, the new 760 has 1006+ mhz core speed, mofos
armin2100 says:
why nvidia 680 gtx is better?

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