- Joined
- May 29, 2002
- Location
- Spokane, USA
I ran a series of tests on my computer using various BIOS settings to see how much of a difference things make, with the following results:
Test 1: 1250 MHz(L1 on, L2 on), 100 FSB, 200.0 RAM, 2.5/3/3/6 timing
3468 Dhrystone 1740 Whetstone 1353/1253 MBps RAM bandwidth
Test 2: 1667 MHz(L1 on, L2 on), 133 FSB, 333.3 RAM, 2.5/3/3/6 timing
4585 Dhrystone 2301 Whetstone 1983/1864 MBps RAM bandwidth
Test 3: 1750 MHz(L1 on, L2 on), 140 FSB, 280.0 RAM, 2.5/3/3/6 timing
4817 Dhrystone 2418 Whetstone 2016/1872 MBps RAM bandwidth
Test 4: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2.5/3/3/6 timing
4818 Dhrystone 2418 Whetstone 2089/1966 MBps RAM bandwidth
Test 5: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2/3/3/6 timing
4818 Dhrystone 2418 Whetstone 2095/1981 MBps RAM bandwidth
Test 6: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2/2/2/5 timing
4832 Dhrystone 2418 Whetstone 2116/2009 MBps RAM bandwidth
Test 7: 1750 MHz(L1 off, L2 off), 140 FSB, 346.6 RAM, 2/3/3/6 timing
28 Dhrystone 29 Whetstone Memory bandwidth test cancelled after 20 minutes
Reference point: 486DX2 66MHz
85 Dhrystone 31 Whetstone
In particular, the difference between CAS 2 and CAS 2.5 is about a third of a percent, and the difference between the least aggressive timings and the most aggressive is 1.25%. For comparison, enabling the L1 and L2 caches increases performance by a whopping 17,107%!
Asus A7V333, Athlon XP2000+, 512MB Corsair PC2700 CL2, and assorted other parts.
Benchmark program: SiSoft Sandra
Test 1: 1250 MHz(L1 on, L2 on), 100 FSB, 200.0 RAM, 2.5/3/3/6 timing
3468 Dhrystone 1740 Whetstone 1353/1253 MBps RAM bandwidth
Test 2: 1667 MHz(L1 on, L2 on), 133 FSB, 333.3 RAM, 2.5/3/3/6 timing
4585 Dhrystone 2301 Whetstone 1983/1864 MBps RAM bandwidth
Test 3: 1750 MHz(L1 on, L2 on), 140 FSB, 280.0 RAM, 2.5/3/3/6 timing
4817 Dhrystone 2418 Whetstone 2016/1872 MBps RAM bandwidth
Test 4: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2.5/3/3/6 timing
4818 Dhrystone 2418 Whetstone 2089/1966 MBps RAM bandwidth
Test 5: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2/3/3/6 timing
4818 Dhrystone 2418 Whetstone 2095/1981 MBps RAM bandwidth
Test 6: 1750 MHz(L1 on, L2 on), 140 FSB, 346.6 RAM, 2/2/2/5 timing
4832 Dhrystone 2418 Whetstone 2116/2009 MBps RAM bandwidth
Test 7: 1750 MHz(L1 off, L2 off), 140 FSB, 346.6 RAM, 2/3/3/6 timing
28 Dhrystone 29 Whetstone Memory bandwidth test cancelled after 20 minutes
Reference point: 486DX2 66MHz
85 Dhrystone 31 Whetstone
In particular, the difference between CAS 2 and CAS 2.5 is about a third of a percent, and the difference between the least aggressive timings and the most aggressive is 1.25%. For comparison, enabling the L1 and L2 caches increases performance by a whopping 17,107%!
Asus A7V333, Athlon XP2000+, 512MB Corsair PC2700 CL2, and assorted other parts.
Benchmark program: SiSoft Sandra