Zotac GeForce 9800 GX2 Review 71

Zotac GeForce 9800 GX2 Review

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Today NVIDIA launches the GeForce 9800 GX2. As the name suggests this card is a dual GPU design, just like the AMD Radeon HD 3870 X2. Compared to the latter there is a big design difference, NVIDIA uses two seperate PCBs with one GPU each. This allows much easier signal routing and helps signal stability allowing higher clocks. As cooling solution a new ingenious approach is used. The GPUs are facing each other, with one cooler in between. This helps keep the fan noise down, also the whole card is lighter and is cheaper to manufacture.

When looking at the specs it becomes clear that the NVIDIA GeForce 9800 GX2 is really not much more than two 8800 GTS cards glued together and running in SLI. What should be noted here is that the GeForce 9800 GX2 will work in any system with PCI-Express, an NVIDIA chipset is not required for operation.
Zotac's card follows the reference design to the letter, with the only exception being a Zotac sticker on the card's cooler. Zotac is working hard with NVIDIA to release a higher-performance Amp! Edition, but at the moment NVIDIA does not allow any changes to the card and its settings.

HD 3850
HD 3870
9600 GT
8800 GTS
8800 GT
8800 GTS
HD 3870 X2
8800 GTX
9800 GX2
8800 Ultra
Shader units 32032064961121282x 3201282x 128128
ROPs161616201616 2x 16 242x 1624
GPURV670RV670G94G80G92G922x RV670G802x G92G80
Transistors666M 666M505M 681M 754M754M2x 666M 681M 2x 754M681M
Memory Size256 MB 512 MB 512 MB 320 MB
640 MB
512 MB 512 MB 2x 512 MB768 MB2x 512 MB 768 MB
Memory Bus Width 256 bit 256 bit 256 bit 320 bit 256 bit 256 bit 2x 256 bit 384 bit 2x 256 bit 384 bit
Core Clock670 MHz 777 MHz 650 MHz 500 MHz 600 MHz 650 MHz 825 MHz 575 MHz 600 MHz 612 MHz
Memory Clock828 MHz 1126 MHz 900 MHz 800 MHz 900 MHz 970 MHz 900 MHz 900 MHz 1000 MHz 1080 MHz
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