GeForce GTX 680 will according to rumors become the new performance leader. Reports on the functionality of the card is starting to leak and the latest reveal support for Surround Gaming with three monitors, and a new anti-aliasing technology – TXAA.
NVIDIA has not only been focusing on performance with the new GK104 GPU and its flagship GeForce GTX 680 is said to bring several technological news where NVIDIA Surround will finally be available with a single graphics card (one GPU). Much like AMD Eyefinity, NVIDIA Surround enables users to connect three monitors at the same time and expand the resolution across all three (For example 5760 x 1080 pixels), which will result in a more surrounding feel. Earlier NVIDIA has requried two GPUs to achieve this – KFA2/Galaxy the exeption since they used extra circuits with its MDT series. GeForce GT 680 will according to Fudzilla actually support 4 monitors at the same, but the fourth will not be used in games, but will be a spare monitor for desktop expanding.
To enable sufficient performance to power all monitors NVIDIA has set the frequency at 1006 MHz for the GPU, a frequency that that automatically rises thanks to the Turbo function “GPU Boost” that we reported on earlier. This is also a lot more than the 705 MHz earlier rumors have spoken of. With 1 536 CUDA cores and 2GB GDDR5 memory at 6000 MHz the card will be plenty fast and sport memory bandwidth at 192 GB/s.
According to German 3DCenter.org Kepler and the GK104 GPU will be smaller than we think. With a die surface of only 294mm² GK104 is much smaller than Tahiti XT that sits in Radeon HD 7970, while it makes GF110 in GeForce GTX 580 look like a clumsy dinosaur.
| Model | GTX 680 “Kepler” | GTX 580 “Fermi” | HD 7970 “Southern Islands” |
| GPU | GK104 | GF110 | Tahiti XT |
| Node | 28nm | 40nm | 28nm |
| Transistors | 3.54 billion | 3.0 billion | 4.3 billion |
| Die size |
294mm² | 520mm² | 365mm² |
| CUDA/Radeon cores |
1 536 st | 512 st | 2 048 st |
| GPU frequency |
1006 MHz | 772 MHz | 925 MHz |
| Memory |
2GB GDDR5 | 3 GB GDDR5 | 3 GB GDDR5 |
| Memory bus |
256-bit | 384-bit | 384-bit |
| Memory frequency |
6.0 GHz | 4.0 GHz | 5.5 GHz |
| Memory bandwidth |
192 GB/s | 192 GB/s | 264 GB/s |
| ROPs | 32 | 48 | 32 |
| Texture units |
128 | 64 | 128 |
NVIDIA has also developed a new anti-aliasing technology called TXAA. According to leaked pictures from NVIDIA’s press documents TXAA will enable better image quality and softer edges than 8xMSAA, which is the most common technology today. It will also be faster than the quite demanding 8xMSAA technology.
NVIDIA’s coming flagship even been listed at Dutch etailer ComCom.nl where the price for Zotac GeForce GTX 680 lands at around 500 euro. Exactly what the price will be in stores at launch remains to be seen, but this should be a hint of what to expect. Most likely GeForce GTX 680 will be priced on par with Radeon HD 7970 that costs slightly less today.
Earlier rumors have spoken of a launch within a week, which means it won’t take long before all details surrounding NVIDIA’s new graphics card will be revealed.
Source: Fudzilla, 3DCenter.org, TechPowerUp, HKEPC
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