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Leadtek 7800 GTX SLI

Date: 2005-08-30 | Author: Scott Sherman
Company: Leadtek

Related Reviews:

» Gigabyte GeForce 7800 GTX Review
» nVIDIA GeForce 7800 GTX Preview

Introduction
 
NVIDIA’s new GeForce 7800 GTX clearly has been received very well by the hardware sites on the Internet. It is a very fast card. In fact, in some cases, it is as fast as having two GeForce 6800 Ultras in your machine.
 
Considering how fast the card is alone, I was very curious how fast it would be in SLI-mode.  I’ve spent one month playing games just to get a feel for what two GeForce 7800 GTX's in SLI-mode can do. For our testing, I used two Leadtek GeForce 7800 GTX cards. This article should give you an idea if it’s currently worth going with two GeForce 7800 GTX cards or not.
 
 
The Card
 
If you are not familiar with the GeForce 7800 GTX, you should read our preview of the card first.
 
Let’s look at the specifications and what Leadtek has bundled with the card.
 
GPU GeForce 7800GTX TDH
Memory Size 256 MB DDR3
Memory Interface 256-bit
Graphics Bus PCI Express
GPU/Memory Clock 430/1200 MHz
(Overclock BIOS for 450/1250 MHz download)
Memory bandwidth( GB/sec.) 38.4
Fill Rate(billion texels/sec) 10.32
Vertices/sec (million) 860
Pixels per clock (peak) 24
RAMDACs (MHz) 400
Process 0.11µ
Output VIVO with HDTV out, DVI
Package contents WinFast PX7800GTX TDH graphics card
General guide
Quick installation guide
Driver & Utilities CD-ROM
DVI to VGA converter x 2
vivo cable
 
  Games

I took the specifications right from Leadtek’s website so I could point something out to you. You will notice they talk about the overclock BIOS in the GPU/Memory section. They came out with a BIOS that gives you these default overclocked speeds and are backed by their warranty. Both the cards we are using are at this BIOS level. This is good because sometimes you cannot get overclocking in SLI to work too well since both cards have to sync up, and the driver has to make sure they can run at the same speed. Also, NVIDIA changed some ways they design things with the 7800 GTX: some parts of the GPU may be running up to 525MHz when running 3D apps and others at lower speeds. So, overclocking has become much more interesting with this series of cards.

The bundle is similar with that of other Leadtek cards and includes both a DVD authoring tool and a DVD player as well as two relatively new games, Splinter Cell: Chaos Theory and Prince of Persia: Warrior Within.




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