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Intel Xeon X3450 vs Xeon E5-1603

The Intel Xeon E5-1603 @ 2.80GHz is newer than Intel Xeon X3450 @ 2.67GHz and is around 20% faster in multi-threaded (CPU Mark) testing. The Intel Xeon E5-1603 @ 2.80GHz is around 9% faster in single-thread testing. Also, Intel Xeon E5-1603 @ 2.80GHz uses around 31% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 534 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Xeon X3450 @ 2.67GHz×Intel Xeon E5-1603 @ 2.80GHz+ ADD
Price Search Online Search Online
Socket TypeLGA1156LGA2011
CPU ClassServerServer
Clockspeed2.7 GHz2.8 GHz
Turbo SpeedUp to 3.2 GHzNot Supported
# of Physical Cores4 (Threads: 8)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 10MB
TDP95W130W
Yearly Running Cost$17.34$23.73
Other
First Seen on ChartQ4 2009Q2 2012
# of Samples184350
CPU Rank30882819
CPU Value74.3102.5
Single Thread Rating(% diff. to max in group)1223(-8.6%)1337(0.0%)
CPU Mark(% diff. to max in group)2899(-16.5%)3473(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 12th of March 2026 - Higher results represent better performance
Intel Xeon X3450 @ 2.67GHz
2,899
Intel Xeon E5-1603 @ 2.80GHz
3,473
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 12th of March 2026 - Higher results represent better value
Intel Xeon X3450 @ 2.67GHz
74.3
Intel Xeon E5-1603 @ 2.80GHz
102.5
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 12th of March 2026 - Higher results represent better performance
Intel Xeon X3450 @ 2.67GHz
1,223
Intel Xeon E5-1603 @ 2.80GHz
1,337
PassMark Software © 2008-2026
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Xeon X3450 @ 2.67GHz Intel Xeon E5-1603 @ 2.80GHz
Max TDP95W130W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.