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Two nearly identical systems performing differently? Vista and XP? Plz Help

post #1 of 4
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(I tried to make sure I posted this in the correct forum but couldn't find one that fit perfect, it may be a graphics card thing so I hoped it would fit here)

Okay, a few months ago I purchased a new PC (check my System below) and my roommate purchased almost the exact same system. The only differences are that
-I have Windows Vista Ultimate 64bit and he has WinXP Pro 32bit;
-I have a Geforce 7950GT 512mb and he has an ATI X1900GT 256mb. My card is a better card...
-I have 3 Gigs of RAM (because I added a stick, so it's also single channel) and he has 2 Gigs (same exact sticks as my original 2 gigs).
-The last thing is the motherboard, his is also an ASUS but was like... $30 dollars more (I'm not sure exactly what kind he has).

The reason I list his specs are because we play many of the same games and I've noticed (especially with HL2 and mods) his fps is much higher with more AA and AF on as well as a much higher resolution. If I run at 1680x1050 res my graphics go to hell but he can do it fine... and with better performance. His fps should be lower than mine with the same in-game settings... not higher with higher settings. It's insane.

I was hoping someone could tell me if maybe using Vista instead of XP could be causing the difference or if the RAM being single channel would be the issue. I know my graphics card performs better than his in benchmarks and I can't figure out why the performance difference is occurring overwhelmingly in his favor.

Also, when I added my 3rd gig of RAM (same timings) it was a different brand than my other 2 and I lost dual channel mode, when this happened my RAM rating in Vista went from 5.9 to 5.0... seems pretty drastic for adding RAM.
my comp
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K Asus P8Z77-V Pro MSI N460GTX Hawk Talon Attack (Fermi) 1GB G.Skill 8GB Sniper Low Voltage Series DDR3 1600 
Hard DriveOSMonitorKeyboard
2TB HITACHI Deskstar @ 7200 RPM 64MB 6.0Gb/s Windows 7 Ultimate 64bit HP 22" WS Microsoft Natural Ergonomic Keyboard 4000 
PowerCaseMouseMouse Pad
Thermaltake W0106RU 700W COOLER MASTER CM Storm Series Trooper Microsoft Wired Laser Habu Gaming Mouse Razer Mantis Speed Mat 
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my comp
(13 items)
 
  
CPUMotherboardGraphicsRAM
i5-3570K Asus P8Z77-V Pro MSI N460GTX Hawk Talon Attack (Fermi) 1GB G.Skill 8GB Sniper Low Voltage Series DDR3 1600 
Hard DriveOSMonitorKeyboard
2TB HITACHI Deskstar @ 7200 RPM 64MB 6.0Gb/s Windows 7 Ultimate 64bit HP 22" WS Microsoft Natural Ergonomic Keyboard 4000 
PowerCaseMouseMouse Pad
Thermaltake W0106RU 700W COOLER MASTER CM Storm Series Trooper Microsoft Wired Laser Habu Gaming Mouse Razer Mantis Speed Mat 
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post #2 of 4
First, you are probably better off sticking with 2GBs of ram. Losing dual channel WILL hurt you, odds are the system won't use the extra ram often, if ever. It will use dual channel constantly.

And yes, there is a pretty decent hit in Vista performance wise. But I would definitely make sure you update to the latest drivers if you haven't already, just to be sure you are good there. Other than that, does he have his CPU or GPU overclocked?? That can make a big difference as well
    
CPUMotherboardGraphicsRAM
Core I7 920 D0@4.3Ghz 1.36v 24/7 HT on Foxconn Blood Rage EVGA GTX590 Classified HC 6GB Mushkin DDR3@8-8-8-19 1640 
Hard DriveOSMonitorPower
64GB Kingston v100 SSD/500GB Seagate+500GB WD R... Windows 7 Ultimate x64 NEC EA232WMi+2xemachines 5760x1080 surround Cooler Master 850w 
Case
Corsair 800D 
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CPUMotherboardGraphicsRAM
Core I7 920 D0@4.3Ghz 1.36v 24/7 HT on Foxconn Blood Rage EVGA GTX590 Classified HC 6GB Mushkin DDR3@8-8-8-19 1640 
Hard DriveOSMonitorPower
64GB Kingston v100 SSD/500GB Seagate+500GB WD R... Windows 7 Ultimate x64 NEC EA232WMi+2xemachines 5760x1080 surround Cooler Master 850w 
Case
Corsair 800D 
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post #3 of 4
XP>Vista for gaming.
And then
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom 9750 @ 3.0 Foxconn A7DA-S XFX HD4770 G.Skill Pi Black 2x2GB 
Hard DriveOptical DriveOSMonitor
40GB Intel X25-V & 2.5TB Storage Samsung DVD/RW SATA Vista x64 Envision 22" 
PowerCase
Antec Basiq Plus 550w Rocketfish Lian Li 
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And then
(13 items)
 
  
CPUMotherboardGraphicsRAM
Phenom 9750 @ 3.0 Foxconn A7DA-S XFX HD4770 G.Skill Pi Black 2x2GB 
Hard DriveOptical DriveOSMonitor
40GB Intel X25-V & 2.5TB Storage Samsung DVD/RW SATA Vista x64 Envision 22" 
PowerCase
Antec Basiq Plus 550w Rocketfish Lian Li 
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post #4 of 4
Another case of how great Vista can bog a machine... also go matched ram and fill 2 slots at a time... 3 sticks has your memory controller sitting in a bad position, thats a setting for slot burnout.
    
CPUMotherboardGraphicsRAM
Athlon 64 X2 6400+ Windsor Black 3.2GHz Lapped! ASUS M2N-SLI Deluxe AM2 NVIDIA nForce 570 GeForce 8800GTS (G92) 512MB Kingston HyperX 2G x2 800 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar SE 500GB 7200 HP DVD+RW 20x XP PRO 64bit builders self slipstreamed w/ SP2 22" Wide-screen Starlogic 
KeyboardPowerCaseMouse
Compaq OCZ GameXStream 700W Thermaltake Armor Black Full Tower w/ 25CM Fan MS Laser Wired 
Mouse Pad
Anything laying on desk... 
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CPUMotherboardGraphicsRAM
Athlon 64 X2 6400+ Windsor Black 3.2GHz Lapped! ASUS M2N-SLI Deluxe AM2 NVIDIA nForce 570 GeForce 8800GTS (G92) 512MB Kingston HyperX 2G x2 800 
Hard DriveOptical DriveOSMonitor
Western Digital Caviar SE 500GB 7200 HP DVD+RW 20x XP PRO 64bit builders self slipstreamed w/ SP2 22" Wide-screen Starlogic 
KeyboardPowerCaseMouse
Compaq OCZ GameXStream 700W Thermaltake Armor Black Full Tower w/ 25CM Fan MS Laser Wired 
Mouse Pad
Anything laying on desk... 
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