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Intel Xeon E5640 vs Xeon E5-2637 v4

The Intel Xeon E5-2637 v4 @ 3.50GHz is newer than Intel Xeon E5640 @ 2.67GHz and is significantly faster in multi-threaded (CPU Mark) testing. It is also significantly faster in single-thread testing. Also, Intel Xeon E5640 @ 2.67GHz uses substantially less power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 112 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 E5640 @ 2.67GHz×Intel Xeon E5-2637 v4 @ 3.50GHz+ ADD
Price Search Online $75.1 - BUY
Socket TypeLGA1366FCLGA2011-3
CPU ClassServerServer
Clockspeed2.7 GHz3.5 GHz
Turbo SpeedUp to 2.9 GHzUp to 3.7 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 12MBL1: 256KB, L2: 1.0MB, L3: 15MB
TDP80W135W
Yearly Running Cost$14.60$24.64
Other
First Seen on ChartQ2 2010Q2 2016
# of Samples5557
CPU Value56.199.3
Single Thread Rating(% diff. to max in group)1199(-46.0%)2221(0.0%)
CPU Mark(% diff. to max in group)3880(-48.0%)7460(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 12th of November 2025 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
3,880
Intel Xeon E5-2637 v4 @ 3.50GHz
7,460
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 12th of November 2025 - Higher results represent better value
Intel Xeon E5640 @ 2.67GHz
56.1
Intel Xeon E5-2637 v4 @ 3.50GHz
99.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 12th of November 2025 - Higher results represent better performance
Intel Xeon E5640 @ 2.67GHz
1,199
Intel Xeon E5-2637 v4 @ 3.50GHz
2,221
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 E5640 @ 2.67GHz Intel Xeon E5-2637 v4 @ 3.50GHz
Max TDP80W135W
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.