2X 512MB HIS HD3850 ICEQ 3 Turbo Crossfire

[eva2000]

Light weight heatsink, but man is HD3850 CF pretty amazing!

System:

• Intel Core 2 Extreme QX9650 L739A644 Retail OEM
• CPU cooling = Dtek Fuzion Rad Tower Box
• NB chipset cooling = Radiical Chipset Block/Corsair Cool single 120mm fan Rad/MCP350
• Asus Blitz Extreme 0904 bios
• 2x 512MB HIS HD3850 IceQ 3 Turbo stock speed @715/909
• 2x1GB OCZ PC3-14400 Platinum - DDR3-1800 rated at 8-8-8-27 at 1.9v
• 500GB Seagate 7200.10 SATA on SATA1 Port
• LiteOn 165H DVD Burner
• Sony FDD
• 1KW OCZ ProXStream
• WinXP Pro SP2

Info & Findings:

• 30-33C idle with peak 46C 3dmark06 load temps. But CCC Auto Tune tests drove load temps to as high as a fluctuating 60-67C max.
• fan speed is much more quieter than my 640MB 8800GTS, 512MB 8800GT, 8800GTX and 2900XT video cards!
• stock HIS HD3850 IceQ 3 Turbo speed = 297/828 2D and 715/909 3D
• stock QX9650 speed + stock clocked HD3850 Crossfire system load power draw during 3dmark06 only 285 Watts!!!
• QX9650 @4203Mhz at 1.608v with 2x HD3850 CF @783/1098 system load power draw during 3dmark peaked only at 425 Watts !
• CCC Auto Tune tests for 2x HD3850 CF went to 890Mhz on GPU and hung on 920Mhz MEM clocks.
• Manual overclocking via CCC for HD3850 CF manages 785Mhz GPU and maxing out CCC's MEM slider at 1100 which equates to GPUZ reported 783/1098
• stock QX9650 speed + stock clocked HD3850 Crossfire 3dmark06 = 16,693 !
• stock QX9650 speed + stock clocked HD3850 Crossfire 3dmark05 = 20,913
• stock QX9650 speed + stock clocked HD3850 Crossfire 3dmark2003 = 58,496
• stock QX9650 speed + stock clocked HD3850 Crossfire 3dmark2001 = 55,798

Catalyst 7.11 Control Center





Enabling Crossfire



Crossfire Mode Overdrive

One card idles 30-33C while other card idles 39-41C




Stock QX9650 9x333FSB = 3005Mhz

Stock 2x 512MB HIS HD3850 IceQ 3 Turbo stock speed @715/909

• 3dmark06 = 16,693
• 3dmark05 = 20,913
• 3dmark2003 = 58,496
• 3dmark2001 = 55,798

2x 512MB HIS HD3850 IceQ 3 Turbo @783/1098

Some benchmarks seem very cpu limited for 3850 CF

• 3dmark06 = 17,128
• 3dmark05 = 21,069
• 3dmark2003 = 64,080
• 3dmark2001 = 57,135

QX9650 9x467FSB = 4203Mhz
Let's see how cpu limited 3850CF would be when QX9650 is clocked up to 4203Mhz

2x 512MB HIS HD3850 IceQ 3 Turbo @783/1098

• 3dmark06 = 21,414 - http://service.futuremark.com/compare?3dm06=4187412
• 3dmark05 = 28,434 - http://service.futuremark.com/compare?3dm05=3788174
• 3dmark2003 = 68,381 but got higher score @4185Mhz = 68,494 - http://service.futuremark.com/compare?2k3=5645922
• 3dmark2001 = 76,155 (no LOD used yet) - http://service.futuremark.com/compare?2k1=9302636

Not bad.. shame my QX9650 suxs on H20 heh

Tried to run AM3 but it blanks out at the very end ???