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Recommended Book
Maximum PC Guide to Extreme PC Mods (Maximum PC Guide To...)
By Jon Phillips
Que
Price: $29.99

Home » Video
nVidia GeForce 7900 GT Review
Author: Gabriel Torres and Cássio Lima
Type: Reviews Last Updated: June 30, 2006
Page: 2 of 10
$ Check REAL-TIME pricing for VisionTek RADEON HD 4850, (512 MB) PCI Express Video Card $
CompUSA.com: $199.99 Circuit City: $199.99
TigerDirect.com: $199.99 Amazon: $199.99
Newegg: $189.99

GeForce 7900 GT Reference Model from nVidia

We removed the video card heatsink to take a look. It is all copper-made, as you can see on Figure 4.

GeForce 7900 GT
click to enlarge
Figure 4: The video card with its heatsink detached.

As you may have notice on Figure 2, the heatsink doesn’t touch the memory chips, so no cooling solution is provided for them.

This video card has eight GDDR3 256-Mbit 1.4 ns chips from Samsung (K4J55232QG-BC14), making its 256 MB video memory (256 Mbits x 8 = 256 MB). These chips can run up to 1.4 GHz. Since this video card accesses its memory at 1.32 GHz, there is only 6% headroom if you wish to overclock it inside its specs. As a curiosity, the Radeon X1900 GT we reviewed used the same memory chips but with a different speed grade (1.2 ns, BC12).

GeForce 7900 GT
click to enlarge
Figure 5: Memory chips from Samsung used on this card.

On Figure 6 you can see GeForce 7900 GT chip. As you can see, it is internally called G71-GT by nVidia.

GeForce 7900 GT
click to enlarge
Figure 6: GeForce 7900 GT chip.

Pages (10): « 1 [2] 3 4 5 6 7 8 9 10 »
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