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Intel Xeon E3-1205 v6 vs Xeon E5-1620 v3

The Intel Xeon E3-1205 v6 @ 3.00GHz is newer than Intel Xeon E5-1620 v3 @ 3.50GHz and is around -19% slower in multi-threaded (CPU Mark) testing. The Intel Xeon E3-1205 v6 @ 3.00GHz is around -7% slower in single-thread testing. Also, Intel Xeon E3-1205 v6 @ 3.00GHz uses substantially less power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 1219 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 E3-1205 v6 @ 3.00GHz×Intel Xeon E5-1620 v3 @ 3.50GHz+ ADD
Price Search Online $232.12 - BUY
Socket TypeFCLGA1151LGA2011-v3
CPU ClassServerServer
Clockspeed3.0 GHz3.5 GHz
Turbo SpeedNot SupportedUp to 3.6 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 10MB
TDP65W140W
Yearly Running Cost$11.86$25.55
OtherIntel HD Graphics P630
First Seen on ChartQ1 2020Q3 2014
# of Samples11218
CPU Value29.430.1
Single Thread Rating(% diff. to max in group)1875(-6.7%)2009(0.0%)
CPU Mark(% diff. to max in group)5682(-18.8%)6993(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 16th of June 2025 - Higher results represent better performance
Intel Xeon E3-1205 v6 @ 3.00GHz
5,682
Intel Xeon E5-1620 v3 @ 3.50GHz
6,993
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 16th of June 2025 - Higher results represent better value
Intel Xeon E3-1205 v6 @ 3.00GHz
29.4
Intel Xeon E5-1620 v3 @ 3.50GHz
30.1
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 16th of June 2025 - Higher results represent better performance
Intel Xeon E3-1205 v6 @ 3.00GHz
1,875
Intel Xeon E5-1620 v3 @ 3.50GHz
2,009
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 E3-1205 v6 @ 3.00GHz Intel Xeon E5-1620 v3 @ 3.50GHz
Max TDP65W140W
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.