Noise, Overclocking, 2D Quality

Leadtek claims the noise from the cooling system deployed on the WinFast PX6800 GT doesn’t exceed 28dB. The card is really very quiet, although not absolutely noiseless, after the OS with the ForceWare driver has booted up. The noise mostly consists of the quiet hissing of the air which is being sucked in through the protecting grid. It is not irritating at all. So, even though the noise may be louder than 28dB, it is quite comfortable to work at a PC with a WinFast PX6800 GT inside.

Our overclocking experiments suggest that this device can really be called the enthusiast’s choice. We reached 450/600 (1200) MHz without extra cooling, and the card was stable at these frequencies. Of course, there’s no guarantee that each sample of the PX6800 GT is going to be as overclocker-friendly as ours, but we think you have a high chance of success here, not least because of the advanced cooling system developed at Leadtek. The concept first implemented back in the WinFast A380 TDH Ultra has proved its efficiency (for details see our article called ASUS RADEON 9800 XT and LeadTek WinFast A380 TDH Ultra: The Battle for AquaMark3 ), so we have a third generation of such coolers now.

The quality of the 2D image as produced by the card was acceptable. Both outputs yielded a sharp picture in all resolutions up to 1600x1200@85Hz, but a hardly discernable blur occurred in 1800x1440@75Hz, so we can’t call the 2D quality of this card ideal.

Testbed and Methods

We performed our tests on the following testbed:

• AMD Athlon 64 4000+ processor (2.40GHz, 1MB L2 cache)
• ASUS A8N-SLI Deluxe mainboard
• 2x512MB OCZ PC-3200 Platinum EB DDR SDRAM (CL2.5-3-2-8)
• Samsung SpinPoint SP1213C hard disk drive (Serial ATA-150, 8MB buffer)
• Creative SoundBlaster Audigy 2 audio card

Software:

• Microsoft Windows XP Pro SP2 with DirectX 9.0c
• ATI Catalyst 5.4
• NVIDIA ForceWare 71.89

Besides the Leadtek WinFast PX6800 GT TDH we also tested the following graphics cards:

• NVIDIA GeForce 6800 Ultra 256MB (400/1100MHz) for details see our article called NVIDIA GeForce 6800 Ultra and GeForce 6800: NV40 Enters the Scene ;
• ATI RADEON X850 XT Platinum Edition 256MB (540/1180MHz) for details see our article called ATI RADEON X850 Platinum Edition: Good Things Go Better ;
• ATI RADEON X850 XT 256MB (520/1080MHz) for details see our article called PowerColor X850 XT and PowerColor X800XL Graphics Cards Review ;
• ATI RADEON X800 XL 256MB (400/980MHz) for details see our article called ATI's 0.11 Micron Chip on the Run: ATI RADEON X800 XL Review .

Following our traditional methodology, we enabled the ForceWare optimizations, except the Anisotropic mip filter optimization. The Image settings slider was set to the Quality position. In ATI’s Catalyst we enabled Catalyst A.I. using the Standard mode. The Mipmap Detail Level option was set to Quality. We disabled the VSync option in both drivers.

If possible, we control FSAA and anisotropic filtering from the application. Otherwise, we force the necessary mode from the driver. We don’t edit any configuration files. The graphics quality settings in the games were set to the maximum level, the same for graphics cards from NVIDIA and ATI Technologies. The following games and applications were used:

First Person 3D Shooters:

• Doom 3
• Unreal Tournament 2004
• The Chronicles of Riddick
• Far Cry
• Painkiller: Battle Out of Hell
• Half-Life 2
• F.E.A.R. Multiplayer Demo

Third Person 3D Shooters:

• Splinter Cell: Pandora Tomorrow
• Prince of Persia: Warrior Within

Simulators:

• IL-2 Sturmovik: Aces in the Sky
• Lock On: Modern Air Combat
• Colin McRae Rally 2005

Strategies:

• Warhammer 40.000: Dawn of War
• Perimeter

Semi-Synthetic Benchmarks

• Final Fantasy
• Aquamark3

Synthetic Benchmarks

• Futuremark 3DMark03, build 360
• Futuremark 3DMark05, build 120