Ok, I decided to encode a video in TMPGEnc that if you were curious, you could also do for a comparison.
For this test, I used the re-mastered version of
Kusoyaro's Sappy Self-Indulgence (AVI / XVID 1848 kbps, 23.976 fps, 640x480 (4:3) / MP3 44.1 kHz, 192 kbps / 4:07 / 60.1 MiB).
Hardware:
CPU: AMD Athlon64 X2 3800+ Dual Core Processor "Manchester" (2.01 GHz, 512 KB L2 cache x2 (1 MB total), 90nm SOI, Socket 939.
Motherboard: ASUS A8N-E
RAM: 2 GB DDR generic Micron RAM (1 GB x2), dual channel
HDD: Hitachi 250GB SATA 7K250 (HDS722525VLSA80)
TMPGEnc settings:
DVD NTSC - MPEG-2 720x480, 29.97fps, 2-pass VBR (8000kbps max, 2000kbps min, 8000kbps average "auto" setting), Layer-2 48000Hz 384kbps, Motion search precision: Highest quality (very slow).
I left all the usual background programs and WinXP processes running (anti-virus, firewall, etc.), but closed all open programs (no browser, IRC, P2P, etc.)
Now for the results...
Test 1 - Dual Core
enabled: Elapsed time - 00:15:00 (7431 frames)
Test 2 - Dual Core
disabled: Elapsed time - 00:28:49 (7431 frames)
To disable Dual Core support for a program in Windows XP, start the program (TMPGEnc) then bring up the
Windows Task Manager (Ctrl-Alt-Del). Select the
Processes tab and find the relevant process (TMPGEnc.exe). Right-click on it and select
Set Affinity..., then uncheck one of the boxes (CPU 0, CPU 1). Now, if you select the
Performance tab, your
CPU Usage will be at 50% (instead of 100%) and one of the
CPU Usage History graphs will be idle.
I might do a Dual Core/Single Core XviD encoding test later, but since it will be encoding from a large-ish Lagarith file that you won't have access to I doubt anyone will be able to duplicate it for comparison.