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Geforce GTX 680 vs Geforce GTX 770

Intro

The Geforce GTX 680 comes with core clock speeds of 1006 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 1536 SPUs as well as 128 TAUs and 32 Rasterization Operator Units.

Compare those specifications to the Geforce GTX 770, which has a core clock speed of 1046 MHz and a GDDR5 memory frequency of 1753 MHz. It also makes use of a 256-bit memory bus, and uses a 28 nm design. It is made up of 1536 SPUs, 128 Texture Address Units, and 32 Raster Operation Units.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 680 195 Watts
Geforce GTX 770 230 Watts
Difference: 35 Watts (18%)

Memory Bandwidth

The Geforce GTX 770, in theory, should perform just a bit faster than the Geforce GTX 680 overall. (explain)

Geforce GTX 770 224384 MB/sec
Geforce GTX 680 192256 MB/sec
Difference: 32128 (17%)

Texel Rate

The Geforce GTX 770 is a little bit (approximately 4%) more effective at anisotropic filtering than the Geforce GTX 680. (explain)

Geforce GTX 770 133888 Mtexels/sec
Geforce GTX 680 128768 Mtexels/sec
Difference: 5120 (4%)

Pixel Rate

The Geforce GTX 770 will be a bit (more or less 4%) more effective at AA than the Geforce GTX 680, and also capable of handling higher resolutions better. (explain)

Geforce GTX 770 33472 Mpixels/sec
Geforce GTX 680 32192 Mpixels/sec
Difference: 1280 (4%)

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

Please note that the price comparisons are based on search keywords, and might not be the exact same card listed on this page. We have no control over the accuracy of their search results.

Geforce GTX 680

Amazon.com

Other US-based stores

Geforce GTX 770

Amazon.com

Other US-based stores

Specifications

Model Geforce GTX 680 Geforce GTX 770
Manufacturer nVidia nVidia
Year March 2012 May 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 1046 MHz
Shader Speed 1006 MHz 1046 MHz
Memory Speed 1502 MHz (6008 MHz effective) 1753 MHz (7012 MHz effective)
Unified Shaders 1536 1536
Texture Mapping Units 128 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
DirectX Version DirectX 11.1 DirectX 11.0
OpenGL Version OpenGL 4.2 OpenGL 4.3
Power (Max TDP) 195 watts 230 watts
Shader Model 5.0 5.0
Bandwidth 192256 MB/sec 224384 MB/sec
Texel Rate 128768 Mtexels/sec 133888 Mtexels/sec
Pixel Rate 32192 Mpixels/sec 33472 Mpixels/sec

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the bus width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 can be applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Comments

9 Responses to “Geforce GTX 680 vs Geforce GTX 770”
scott says:
this is weird, they both cost relatively the same but the GTX 770 Beats it. I Think the 770 is a better choice over a 680. but the GTX 680 SOC can probably beat the 770 if they are both left stock.
eddie says:
But the Palit GeForce GTX 770 JetStream can beat the GTX 680 SOC, both stock. With 3 fans it can probably gain a better total increase in bandwidth from a already head start.
javi says:
7xx cards upgrade worth only if it is from a 4xx series i already own two 670 and theres no much difference in performance.
Andreu says:
680 is directX 11.1 compilat and 770 it's DirectX 11.0?, It seems that something is wrong with that info.
Jow says:
I upgraded from a 680 to a 780 and the performance increase was MUCH greater than I had expected. Theoretical bench marks and numbers are just that - theory. Real world performance depends on so many variables that relying on some theory based on numbers and graphs isn't really a good idea. Of course, anecdotal evidence is of even less value, but that depends on the amount of people that experience these upgrades and performance values in the real world.
Cam says:
The price of the 680 is so much higher than the 770 now. Thanks BitCoin. It must be the lower power consumption that draws the BitCoin crazies to it driving the price up?
Roger says:
If I understand the specifications correctly, the GTX 770 is basically an overclocked renamed GTX 680. They both have a GK104 core and the quantity specs are identical. However the clock specs are greater for a GTX 770. I guess that in order to support the greater clock speeds, some of the other hardware in a GTX 770 differs from a GTX 680.
Pav says:
Actually Cam, most nVidia cards are TERRIBLE for bitcoin, litecoin, dogecoin mining. So the pricing for nVidia cards are not a result of any crypto-currency.
Weker says:
Actually due to the increase in price for radeon cards due to mining. Nvidia can in turn increase their prices in relation to radeon cards since they are the only other competition. With the the new line-up of nvidia cards, such as the 750ti, i can only see a cards climbing in price until the whole crytocurrency thing starts to die out, it may be soon considering current events.

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