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Geforce GTX 680 vs Radeon HD 7770
Intro
The Geforce GTX 680 comes with 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 features 1536 SPUs, 128 Texture Address Units, and 32 ROPs.Compare those specifications to the Radeon HD 7770, which has core speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 640 SPUs along with 40 TAUs and 16 ROPs.
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 680 |
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7650 points |
| Radeon HD 7770 |
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3180 points |
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Power Usage and Theoretical Benchmarks
Power Consumption (Max TDP)
| Radeon HD 7770 |
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80 Watts |
| Geforce GTX 680 |
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195 Watts |
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Memory Bandwidth
Theoretically speaking, the Geforce GTX 680 should be much faster than the Radeon HD 7770 overall. (explain)
| Geforce GTX 680 |
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192256 MB/sec |
| Radeon HD 7770 |
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72000 MB/sec |
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Texel Rate
The Geforce GTX 680 should be quite a bit (about 222%) faster with regards to texture filtering than the Radeon HD 7770. (explain)| Geforce GTX 680 |
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128768 Mtexels/sec |
| Radeon HD 7770 |
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40000 Mtexels/sec |
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Pixel Rate
The Geforce GTX 680 is much (more or less 101%) faster with regards to anti-aliasing than the Radeon HD 7770, and should be capable of handling higher resolutions without losing too much performance. (explain)| Geforce GTX 680 |
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32192 Mpixels/sec |
| Radeon HD 7770 |
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16000 Mpixels/sec |
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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 680Amazon.com
Check prices at:
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Radeon HD 7770Amazon.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
| Model | Geforce GTX 680 | Radeon HD 7770 |
|---|---|---|
| Manufacturer | nVidia | AMD |
| Year | March 2012 | February 2012 |
| Code Name | GK104 | Cape Verde XT |
| Memory | 2048 MB | 1024 MB |
| Core Speed | 1006 MHz | 1000 MHz |
| Memory Speed | 6008 MHz | 4500 MHz |
| Power (Max TDP) | 195 watts | 80 watts |
| Bandwidth | 192256 MB/sec | 72000 MB/sec |
| Texel Rate | 128768 Mtexels/sec | 40000 Mtexels/sec |
| Pixel Rate | 32192 Mpixels/sec | 16000 Mpixels/sec |
| Unified Shaders | 1536 | 640 |
| Texture Mapping Units | 128 | 40 |
| Render Output Units | 32 | 16 |
| Bus Type | GDDR5 | GDDR5 |
| Bus Width | 256-bit | 128-bit |
| Fab Process | 28 nm | 28 nm |
| Transistors | 3540 million | 1500 million |
| Bus | PCIe 3.0 x16 | PCIe 3.0 x16 |
| DirectX Version | DirectX 11.0 | DirectX 11.1 |
| OpenGL Version | OpenGL 4.2 | OpenGL 4.2 |
Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.
Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.
Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.
Geforce GTX 680Amazon.com
Check prices at:
|
Radeon HD 7770Amazon.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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Comments
4 Responses to “Geforce GTX 680 vs Radeon HD 7770”confusion ? which would be the next buy AMD or NVIDIA both companies has launched there Gen 3 based cards can u suggest good 3d support budget card . around 250$ .
GTX 560TI [448 cores] if u care Nvidia's PhysiX simulation or Radeon HD7850 if u care better graphics [probably better filtering technology]
[...] phán nhé, hoho, nếu so sánh dòng hd của ati vậy sao ko so sánh gtx của nvidia đó Geforce GTX 680 vs Radeon HD 7770 – Performance Comparison Benchmarks @ Hardware Compare nhìn cho kỹ, nghĩ sao dòng HD7xxx cao cấp của ati mà so sánh với bé GTxxx, so sánh [...]
these results are very surprising i thought the 7770 would have been more of a challenge. i own a sapphire hd 7770 ghz oc... perhaps this card should be compared to the gtx 680 instead of the stock 7770