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Intel Xeon E5645 vs Xeon E5-1650 v2

The Intel Xeon E5-1650 v2 @ 3.50GHz is newer than Intel Xeon E5645 @ 2.40GHz also around 46% faster in multi-threaded (CPU Mark) testing, it is around 45% faster in single-thread testing. However, Intel Xeon E5-1650 v2 @ 3.50GHz uses around 48% more power. All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 1182 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 E5645 @ 2.40GHz×Intel Xeon E5-1650 v2 @ 3.50GHz+ ADD
Price Search Online $238.02 - BUY
Socket TypeLGA1366FCLGA2011
CPU ClassServerServer
Clockspeed2.4 GHz3.5 GHz
Turbo SpeedUp to 2.7 GHzUp to 3.9 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 12MB
TDP80W130W
Yearly Running Cost$14.60$23.73
Other
First Seen on ChartQ2 2011Q3 2013
# of Samples1021080
CPU Value36.639.2
Single Thread Rating(% diff. to max in group)1134(-44.6%)2049(0.0%)
CPU Mark(% diff. to max in group)5019(-46.2%)9330(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 13th of March 2025 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
5,019
Intel Xeon E5-1650 v2 @ 3.50GHz
9,330
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 13th of March 2025 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz
36.6
Intel Xeon E5-1650 v2 @ 3.50GHz
39.2
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 13th of March 2025 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
1,134
Intel Xeon E5-1650 v2 @ 3.50GHz
2,049
PassMark Software © 2008-2025
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 E5645 @ 2.40GHz Intel Xeon E5-1650 v2 @ 3.50GHz
Max TDP80W130W
Power consumption per day (kWh)0.160.26
Running cost per day$0.040$0.065
Power consumption per year (kWh)58.494.9
Running cost per year$14.60$23.73
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.