Filter
Top Products
For comparisons that more accurately demonstrate the performance of a dual proces-
sor system, VeriTest used the “SPEC rate” metrics, which recognize multiple processors.
With SPECint_rate_base2000 and SPECfp_rate_base2000, the benchmark code is
compiled and multiple copies are run concurrently, allowing both processors to work
in parallel. SPEC rate tests determine the number of times a system can complete the
benchmark per hour, also referred to as system throughput.
These results clearly demonstrate the benefits of the dual processor Power Mac G5. With
full support for symmetric multiprocessing, dual independent 1GHz frontside buses, and
two floating-point units per processor, the dual 2GHz Power Mac G5 completed the set
of floating-point calculations 95 percent faster than the Pentium 4–based system and
42 percent faster than the dual Xeon-based workstation. Integer performance was also
far superior to the Pentium 4–based system and on par with the dual Xeon-based system.
3
For a detailed report of SPEC CPU2000 test results, see www.veritest.com.
Power Mac G5
Dual 2GHz PowerPC G5
Dell Precision 650
Dual 3.06GHz Xeon
Dell Dimension 8300
3GHz Pentium 4
17.2
16.7
10.3
10 200
10 200
Power Mac G5
Dual 2GHz PowerPC G5
Dell Precision 650
Dual 3.06GHz Xeon
Dell Dimension 8300
3GHz Pentium 4
15. 7
11 . 1
8.1
SPEC score
SPECint_rate_base2000: Integer calculations
SPECfp_rate_base2000: Floating-point calculations
13
White Paper
PowerPC G5
SPEC CPU2000: Dual Processor System Throughput