Test Systems and benchmarking
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Motherboard Tests:
AMD X2 3800+
ATI X850XT 256mb
2x512mb DDR 3200 (2-2-2-5)
Samsung 80Gb 7200rpm 8mb Cache Sata Drive
Sony DWD22a DVDRW drive
Ultra Xconnect 500w PSU
ATI Reference Crossfire Motherboard
DFI Lanparty NF4 Motherboard
Graphics Card Tests - Crossfire/X850 single/7800GTX:
AMD Athlon64 FX55 CPU
2x512mb DDR 3200 (2-2-2-5)
Samsung 80Gb 7200rpm 8mb Cache Sata Drive
Sony DWD22a DVDRW drive
Ultra Xconnect 500w PSU
ATI Reference Crossfire Motherboard
X850 XT 256 master and slave cards
Geforce 7800GTX 256mb
Graphics Card Tests - 7800GT SLI/ 6800Ultra
SLI:
AMD Athlon64 FX55 CPU
2x512mb DDR 3200 (2-2-2-5)
Samsung 80Gb 7200rpm 8mb Cache Sata Drive
Sony DWD22a DVDRW drive
Ultra Xconnect 500w PSU
DFI Lanparty NF4 Motherboard
2xGeforce 6800Ultra 256mb
2xGeforce 7800 GT 256mb
Windows XP SP2
.Net FW 1.1 sp1
Catalyst Crossfire WHQL
Forceware 78.03
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The test system was built from scratch, a format of the hard
drive was performed (NTFS) and then Windows XP was installed.
Following the completion of the installation, the Intel/ATI
drivers were installed. The only updates applied were SP2
and .NET Framework 1.1 (latest service pack). Next, the latest
builds of the benchmarking tools were installed and finally,
the hard drive was de-fragmented. For each test, the ATI drivers
were set to default quality/optimizations (unless otherwise
stated).
Good Benchmarking Practice:
Where possible, each benchmark was performed 3 times and
the median result for each resolution/setting is shown in
the tables that will follow. All games/applications had
their latest patches applied.
The Hardware Tested:
If you speak to ATI regarding the hardware Crossfire should
be benched against you'll find that they say not a 7800
series SLI system as it’s the next generation...use
a 6800 SLI system. Nvidia on the other hand will tell you
it should be latest available Vs latest available. Both
have valid points, however we are not here to play the middleman,
we are here to give you all the facts and
let you use them as you require. For that reason we've included
a wide range of configurations. Special thanks to Nvidia
for supplying hardware at such short notice for this review.