Redeeman: first, you're comparing a 3.2 GHz CPU to a 2.7 GHz CPU. That's a 4x500 MHz difference. Second, something must be wrong on the guy's Phenom setup, because pbzip2 completes in 25.4 seconds on my Phenom 9600 (2.3 GHz). That's over twice as fast on a CPU that's slower by 4x400 MHz, and less than 5 seconds slower than the 3.2 GHz Q9450 with a difference of 4x900 MHz.
Since the pbzip2 test relies a lot on memory bandwidth, I wonder if ganged/unganged mode has something to do with the performance discrepancies.
Edit: my bad, I was still using the old 45 MB wav file (concatenated 8 times). But even with the new 82 MB file (times 8), pbzip2 completes in 38.4 seconds on my Phenom.
Since the pbzip2 test relies a lot on memory bandwidth, I wonder if ganged/unganged mode has something to do with the performance discrepancies.
Edit: my bad, I was still using the old 45 MB wav file (concatenated 8 times). But even with the new 82 MB file (times 8), pbzip2 completes in 38.4 seconds on my Phenom.
Comment