[newzhunter]

The GeForce 9800 GX2 has 256 (128 per GPU) stream processors. It will be clocked at 600MHz with shader clk at 1500MHz and memory clk at 1000MHz. The amt. of memory onboard is 1GB (512MB per GPU) and has a memory interface of 512 bits (256 bits per GPU). In total it is able to fulfill a memory bandwidth of 128 GB/sec and a texture fill rate of 76.8 billion/sec.

This card supports the NVIDIA unified Architecture. It has full support of Microsoft DX10 SM 4.0. NVIDIA Purevideo HD and HybridPower is supported. (HybridPower lets you switch from the GeForce 9800 GX2 graphics card to the mainboard GeForce CPU when running non graphically intensive applications. This helps to decrease the noise level and also conserve power.)

The card wil come with 2 Dual link DVI and one HDMI port. It supports PCI Express 2.0 and Open GL 2.1.

The 9800GX2 requires to oeprate with a PCI Express or PCI Express 2.0 mainboard with one dual width x16 graphics card. There must be a 8 and 6 pin supplementary pci express power connectors. The minimum power requirement to operate the card is 580W with a minimum of 40A on it's 12V line.

The product will be officially announced on 11 March 2008.

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[arm4g3don]

omg that shatters the old record of power requirments for a single gpu the 2900xt pulled 260w and i thought the 3870 x2 would be more than the 2900 but it only came in at 230w but this 580w!! do you have a link im finding this hard to believe

[hanlsn]

i highly doubt that is the actual drawn power i think is more of the PSU requirements

[Niceone]

Originally Posted by arm4g3don

omg that shatters the old record of power requirments for a single gpu the 2900xt pulled 260w and i thought the 3870 x2 would be more than the 2900 but it only came in at 230w but this 580w!! do you have a link im finding this hard to believe

My friend..calculate!
1. 580W is a lot more than three 8800 GTS 512 -cards
2. 8800 GT SLI pulls 20W less than HD3870 X2.

I think that 580W is PSU recommendation. This is still higher than HD3870 X2's 550W recommendation

[alfakirmali]

Originally Posted by Niceone

My friend..calculate!
1. 580W is a lot more than three 8800 GTS 512 -cards
2. 8800 GT SLI pulls 20W less than HD3870 X2.

I think that 580W is PSU recommendation. This is still higher than HD3870 X2's 550W recommendation

ATI 3870 X2 power is lower
4 GPUs - 2 x X2 + 2 x 3870 load power bioshock = 538W

http://www.anandtech.com/video/showdoc.aspx?i=3232&p=4

[Niceone]

Originally Posted by alfakirmali

ATI 3870 X2 power is lower
4 GPUs - 2 x X2 + 2 x 3870 load power bioshock = 538W

http://www.anandtech.com/video/showdoc.aspx?i=3232&p=4

You missed my point.

These are PSU recommendations:
9800 GX2 - 580W
HD3870 X2 - 550W
HD3870 X2 crossfire -750W
HD3870 - 450W
8800 GTS 512 - 400W

For example HD3870's PSU-recommendations were found on ATI's web page. GX2's number is a rumour.
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Well as you pointed out HD3870-systems doesn't consume that much..and it's easy to point out that GTS 512 doesn't use that much, but somehow some people think that with GX2 that number is actual consumption?

For example 8800 GT SLI (whole system) consumes 336W only, but now 9800 GX2 (under clockled 8800 GTS SLI) system would use around 580W..where does those extra 144W consumption come from?

These recommendations are that high because:
1. There's no PSU that can deliver that amount of power that they promise
2. There are differencies in PSU units; some cheaper units use not so useful way to get to that number they are promising. For example "Ping Pong 650W" won't pull that much power that Corsair 620W does.

Depending on other system I think that BeQuiet Straight Power 450W would be enough for Geforce 9800 X2 (depending on other system)
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40A 12V..for minimum? Well that converts to 480W ...something fishy in that news.

[watzup_ken]

I think its referring to the full system power draw. But then again, at 65nm, the 9800x2 should be a power sucker as well. Anyway, for those that can afford the card should already own a high end PSU, that will have no probs handling the power requirements of the card.

[Smith]

Originally Posted by watzup_ken

I think its referring to the full system power draw. But then again, at 65nm, the 9800x2 should be a power sucker as well. Anyway, for those that can afford the card should already own a high end PSU, that will have no probs handling the power requirements of the card.

So it mean that the entire system with the 9800GX2 card will required a system minimum of 580W for the PSU?

[lulu]

wtf. utility companies shareholders rejoice!

[saaya]

this thread title is very misleading, the card doesnt need 580W, nvidia recommends a 580W psu for a 9800gx2 system!

[ViperJohn]

580w is the minimum recommended power supply. The card itself is PCIe slot 1.1 compliant and has two PCIe slot edge connectors plus (1) six pin and (1) eight pin PCIe aux connectors.

To stay with the PCIe max input power spec's that would be 75w + 75w max from the PCIe slots, 75w max from the 6 pin aux and 100w max from the 8 pin aux for a total of 325w max input power allowable per the PCIe spec.

Viper