Transfer rates Transfer rate [MB/s]
Frequency [MHz]
CPU
46-153
12-40
Intel 80386
61-191
16-50
Intel 80486
381-503
50-66
Intel Pentium
503-6104
66-200
Intel Celeron
762-1014
100-133
Intel Pentium III
2029-3052
133-200
AMD Athlon XP
3051-8133
100-266.5
Intel Pentium 4 (50% efficient)
3052-4066
100-133.25
Intel Pentium M
3052-6103
100-200
VIA C7
4066-12207
133.25-400
Intel Core 2
11444-15259
120-160
Intel Core i7 (for comparison, QuickPath)
Front-side bus transfer rates have a large impact on main memory transfers. This impacts overall system performance.