nVidia GeForce 7800 GTX out now!

GeForce 7800 GTX is now officially lanuched and to our readers better known as G70, the project name for nVidia’s new graphic card-series. The new series is based on the NV40-arcitecture that is also the foundatin of nVidia’s GeForce 6-series. No fundemental changes changes has been made but at the same time it has tweaked the most and managed to squeeze a number of new technologies in the GeForce 7-series which starts with the launch of 7800 GTX. Despite the small changes on paper 7800-series seems to be a very potent sequel to the 6800-series.

GeForce 7800 GTX specifications is purely theoretical not extremely impressive but looks very promising.

NVIDIA GeForce 7800 GTX Specifications
302M transistors
more than 300mm²
110 nm manufacturing process
Single Slot cooling
430MHz GPU frequency
600MHz GDDR3 256MB/256-bit
8 vertex shader units
24 pixel shader units
16 ROP units
2 DVI och en HDTV / VIVO connections
PCI- Express (AGP versions comes later on)
Drar runt ~100W
350W PSU is recommended (500W for SLI)

One of the biggest differences between 7800 GTX and 6800 Ultra is that 7800 GTX has 24 pixel pipelines compared to 6800 16 pipelines. This increases the rendering power by quite a large margin while the GPU and memory frequencies are only increased a little. Despite this nVidia seems to have been able to increase the performance a lot, especially when using “shader-heavy” applications. 

With certain cases the performance of nVidia’s new circuit krets is almost twice as of 6800 Ultra. But at the same time it can actually slip behind at some occations, so it’s not all good. But it is quite interesting to see how much extra performance nVidia has managed to find without increasing power consumption, something that has been heavily rumoured earlier on. It has actually been lowered compared to 6800 Ultra.

“With a max of three times the MADD throughput, 50% more pixel pipes, and 33% more vertex power than 6800 Ultra, the GeForce 7800 GTX is a force with which to be reckoned. Putting this much processing power into a package that pulls less juice from the wall than a 6800 Ultra is quite a feat as well. The 300+ million transistors fabbed on a 110 nm process are quite capable, and NVIDIA’s compiler technology is finally mature to the point of handling all games with no shader replacement.”
Citat från Anandtech

nVidia has created a really nice card but the perhaps most impressive is that the card is available in stores today, even here in the north of Europe!
That the cards are available in stores already is mighty impressive considering the “paper launches” we are used to, but the prices of the cards are less impressive though.

nVidia seems to be thinking ahead and now we are waiting for ATi’s reply with the launch of R520. Below you can find a number of reviews of 7800 GTX.

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