ac3d runs slower on my new i7 than old i5

Michael Wilson · 24th February 2013, 03:04 PM

the same version of ac3d, exact same plugins, runs way slower in my new i7 than my 2 year old i5. the reason i upgraded my pc was for 3D work, i mostly use ac3d.

my old computer is gateway, i5, 3.0 ghz, 8 gb memory, got it 2 years ago.

my new computer is a gateway i7, 3.4 ghz, 10 gb memory, i just got it last week.

both running windows 7, both using the exact same ac3d version,

ac3d runs much slower on the i7, surely it should be faster.

just to test, i have both computers on at the same time (i have two monitors) if i open up the same complex object in both computers, and in the lower right viewer box rotate the object, the i7 is way slow, almost slide show like, and the i5 is like 50 times faster.

i opened the task manager and i see that when the object is rotating the i5 is using 45-50 percent CPU usage, and the i7 shows CPU usage is 10-12 percent.

i asked gatway tech support is there anyway i can find out the real speed of the CPU, i know that its supposed to be 3.4 ghz but is it really working that speed, and they were of no help, they said to update VGA driver. i will try that but i dont see what VGA driver has to do with this? when i open device manager and click on display adapters and update drivers it says "dont need to update drivers, they are up to date."

24th February 2013, 03:04 PM	#1
Michael Wilson Member Expert member Join Date: Dec 2005 Posts: 78	ac3d runs slower on my new i7 than old i5 the same version of ac3d, exact same plugins, runs way slower in my new i7 than my 2 year old i5. the reason i upgraded my pc was for 3D work, i mostly use ac3d. my old computer is gateway, i5, 3.0 ghz, 8 gb memory, got it 2 years ago. my new computer is a gateway i7, 3.4 ghz, 10 gb memory, i just got it last week. both running windows 7, both using the exact same ac3d version, ac3d runs much slower on the i7, surely it should be faster. just to test, i have both computers on at the same time (i have two monitors) if i open up the same complex object in both computers, and in the lower right viewer box rotate the object, the i7 is way slow, almost slide show like, and the i5 is like 50 times faster. i opened the task manager and i see that when the object is rotating the i5 is using 45-50 percent CPU usage, and the i7 shows CPU usage is 10-12 percent. i asked gatway tech support is there anyway i can find out the real speed of the CPU, i know that its supposed to be 3.4 ghz but is it really working that speed, and they were of no help, they said to update VGA driver. i will try that but i dont see what VGA driver has to do with this? when i open device manager and click on display adapters and update drivers it says "dont need to update drivers, they are up to date." Last edited by Michael Wilson; 24th February 2013 at 03:26 PM.