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Posted 20/06/2008 19:54:24


Pentium

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I haven't seen a review of a 3D screen in MM yet.

With the Zalman Trimon ZM-M220W being <£400 for a 22" display at 1680x1050 I think they are an option now for many people.
I'd love to know how they stack up in 2D performance, is the 3D effect any good, if MM think it's worth the money and what alternatives are available or forthcoming.

Also, is this the perfect usage for SLI/Crossfire? One card per eye would give a genuine 100% speed improvement.


gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
Post #293055
Posted 22/06/2008 03:25:56


Pentium

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How can two cards doing twice the work be twice as fast as one card doing half the work?

Cheers, Slipstreem.



System specs:

"Phoenix" / "The '43' Special" - 1.8GHz Intel C2D E4300 overclocked to 2.83GHz with ACF7Pro HSF on Volt-modded ASRock 775Dual-VSTA mobo (BIOS rev 2.10, VNB=1.65, Vagp=1.8), 1GB Vitesta DDR500 RAM (2.5,3,3,7,1T @ DDR472MHz), Jetway ATI X1950Pro 256MB GDDR3 PCIe graphics card with modded AC Accelero X2 cooler dynamically overclocked to 650MHz GPU & 1.5GHz RAM. Powered by Hiper Type-M 580W PSU. Guess who likes overclocking on a budget.


MP3 Encoding for Audiophiles
Fun MPEG-4 Encoding Race
MPEG-4 Playback Enhancement Using FFDShow
Optimise ATI Image Quality with ATT (X1XXX Series under WinXP)
Boosting ATI Framerates with CCC (X700 on)
How good is the Arctic Cooling Freezer 7 Pro HSF really?

Post #293358
Posted 22/06/2008 21:44:01


Pentium

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Slipstreem (22/06/2008)
How can two cards doing twice the work be twice as fast as one card doing half the work?

Cheers, Slipstreem.
I meant that when running in 3D they could be twice as fast as a single card in 3D.
i.e. 1 card per eye.


gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
Post #293513
Posted 22/06/2008 21:53:47


Pentium

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Yes. Just me being dense.

Cheers, Slipstreem.



System specs:

"Phoenix" / "The '43' Special" - 1.8GHz Intel C2D E4300 overclocked to 2.83GHz with ACF7Pro HSF on Volt-modded ASRock 775Dual-VSTA mobo (BIOS rev 2.10, VNB=1.65, Vagp=1.8), 1GB Vitesta DDR500 RAM (2.5,3,3,7,1T @ DDR472MHz), Jetway ATI X1950Pro 256MB GDDR3 PCIe graphics card with modded AC Accelero X2 cooler dynamically overclocked to 650MHz GPU & 1.5GHz RAM. Powered by Hiper Type-M 580W PSU. Guess who likes overclocking on a budget.


MP3 Encoding for Audiophiles
Fun MPEG-4 Encoding Race
MPEG-4 Playback Enhancement Using FFDShow
Optimise ATI Image Quality with ATT (X1XXX Series under WinXP)
Boosting ATI Framerates with CCC (X700 on)
How good is the Arctic Cooling Freezer 7 Pro HSF really?

Post #293516
Posted 23/06/2008 10:30:47


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Sadly, the 100% improvement isn't possible for exactly the same reasons it doesn't work that well on SLI\Crossfire.
As...there is still only one processor driving the two cards, and twice as much data must be sent across the PCI bus to provide each card with all the data.
Post #293562
Posted 23/06/2008 21:57:33


Pentium

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picknmix (23/06/2008)
Sadly, the 100% improvement isn't possible for exactly the same reasons it doesn't work that well on SLI\Crossfire.
As...there is still only one processor driving the two cards, and twice as much data must be sent across the PCI bus to provide each card with all the data.


Not strictly true:

A quad is not used by the vast majority of games, which are still single threaded, and most enthusiast motherboards have two 16x PCI Express lanes. A single or dual threaded game could be run on two or four cores of a quad, with two identical graphics cards in 3d mode, and effectively be cloned across what would essentially be two systems in one box.

Ideally the game would be single threaded, so would use two cores for the two identical instances, one core for the 3d effect calculations and one core for input and general Windows background usage.

You probably would need 4GB RAM, just because there would be two games running, plus calculations, but if you're going for that much hardware and setup, the extra RAM isn't really going to be a problem






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Post #293731
Posted 23/06/2008 22:50:41


Pentium

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Is PCI-Express a bus or a serial connection. I was taught that a bus shares the data path between devices, in other words each device listens to all the datat transfered along that bus.
If this is the case then with the correct drivers (the 3d effect is almost all to do with the drivers and not the game) it could be possible to transmit the data once and have both cards receive it.


gaming: E4400@2.66GHz / P5K-E / 2x1GB PC8000@533MHz / 2x80GB D'Max 9-RAID0 + 320GB / 8800GTS 512MB / ViewSonic VX2835wm
server+media: P4 2.8GHz @ 2.4GHz / 775Dual-VSTA / 2x512MB PC3200 / 1000GB+500GB+250GB / HD2400pro
also: P3 for the mrs and a linux box and probably enough bits to build another one
Post #293743
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