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Intel Xeon E5649 vs Xeon E5-2620 v3

The Intel Xeon E5-2620 v3 @ 2.40GHz is newer than Intel Xeon E5649 @ 2.53GHz also around 27% faster in multi-threaded (CPU Mark) testing, it is around 22% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Server CPU Class.The values below were tabulated from a combined 668 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 E5649 @ 2.53GHz×Intel Xeon E5-2620 v3 @ 2.40GHz+ ADD
Price Search Online $29 - BUY
Socket TypeLGA1366LGA2011-v3
CPU ClassServerServer
Clockspeed2.5 GHz2.4 GHz
Turbo SpeedUp to 2.9 GHzUp to 3.2 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 15MB
TDP80W85W
Yearly Running Cost$14.60$15.51
Other
First Seen on ChartQ3 2011Q4 2014
# of Samples42626
CPU Value43.6269.3
Single Thread Rating(% diff. to max in group)1318(-22.0%)1690(0.0%)
CPU Mark(% diff. to max in group)5672(-27.4%)7809(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Xeon E5649 @ 2.53GHz
5,672
Intel Xeon E5-2620 v3 @ 2.40GHz
7,809
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 15th of January 2025 - Higher results represent better value
Intel Xeon E5649 @ 2.53GHz
43.6
Intel Xeon E5-2620 v3 @ 2.40GHz
269.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Xeon E5649 @ 2.53GHz
1,318
Intel Xeon E5-2620 v3 @ 2.40GHz
1,690
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 E5649 @ 2.53GHz Intel Xeon E5-2620 v3 @ 2.40GHz
Max TDP80W85W
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.