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Asus EN9800GX2 review: Asus EN9800GX2

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The Good Faster than Nvidia's older flagship products. SLI on a single 3D card slot.

The Bad Requires a beefy power supply and two direct connections. Can't hit 60 frames per second in Crysis at high resolutions. We'll believe Quad SLI being worth the investment when we see it.

The Bottom Line Nvidia's new flagship 3D card delivers almost all the performance we expect for its price. If you can live with "almost," at this price range, then this is a solid PC gaming option. We also wouldn't blame you Crysis fans for waiting to see what's in store later this year.

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7.7 Overall

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Nvidia intends for its new dual-chip, 1GB GeForce 9800GX2 3D cards to replace the venerable GeForce 8800 GTX as its flagship 3D graphics card. Featured here in the $899 Asus EN9800GX2, we found that Nvidia's new card does indeed surpass the 8800 GTX, and for most PC gamers looking for a high-end upgrade, this card and others like it will be the obvious choice. That said, we'd still like to see this or any 3D card take on Crysis at its highest DirectX 10 settings and deliver at least 60 frames per second. Until that happens, we'll have reservations about spending so much on a 3D card.

The GeForce 9800GX2 is similar in concept to ATI's recent Radeon HD 3870 X2, and also Nvidia's older GeForce 7950GX2. The design of all of those cards involves two graphics cards cobbled together into one physical package with a single PCI-Express interface at the bottom. Like the others, the 9800 GX2 does not require you to own a motherboard with two graphics card slots, because the circuitry necessary for the two chips to operate in tandem is built into the card itself.

Unlike the GeForce 7950GX2, there is no standalone, single-chip "GeForce 9800" card yet. Instead, your alternatives include the GeForce 8800 GTX (which can be found between AU$500 and AU$700, depending on brand and bundle), and the insanely priced, AU$900 and above GeForce 8800 GTX Ultra. ATI currently offers nothing in the AU$700-plus price range, although as you'll see in our performance charts farther down the page the Radeons and certain combinations of other Nvidia cards can still compete with the 9800GX2.

  Nvidia GeForce 9800GX2 ATI Radeon HD 3870 X2 (R680)
Lowest current price AU$790 AU$520
Manufacturing process 65nm 55nm
Transistors 1,508 million 1,332 million
Core clock 600MHz 825MHz
Stream processors 256 (per chip) 320 (per chip)
Memory 512MB (per chip) 512MB (per chip)
Memory speed (data rate) 1GHz (2GHz) 900MHz (1.8GHz)
Memory Interface 256-bit 256-bit

Nvidia assumes a few things about potential owners of the GeForce 9800GX2. The first is that you have an interest at playing PC games at very high resolutions, likely on a 24- or 30-inch LCD, and with the detail levels cranked. Our performance numbers show that anything lower than that and you're probably still fine with an 8800 GTX.

The second assumption is that you have a robust enough computer to handle this new card. This includes a power supply rated to a minimum of 580 watts, or 850 watts for two GX2s in SLI, quad-chip mode (for which Nvidia is still working on software support). Also of note, the 9800GX2 requires both a 6-pin and 8-pin internal connection to that power supply.

The 8-pin connection in particular might cause you some grief. Our colleagues at GameSpot reported that they broke the plastic housing on their XFX card while trying to unplug the 8-pin connector. Nvidia's claim is that while it has followed the specification for the 8-pin female end, certain power supply vendors have not built their 8-pin plugs to spec. Our Asus card came with a 6-pin to 8-pin adapter cable (which you might also need, as many power supplies don't have an 8-pin output) that we were able to insert and remove with no trouble.

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