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Intel Xeon E3-1265L V2 vs Xeon E5-2420

The Intel Xeon E3-1265L V2 @ 2.50GHz is newer than Intel Xeon E5-2420 @ 1.90GHz is around 48% faster in single-thread testing. Also, Intel Xeon E3-1265L V2 @ 2.50GHz uses substantially less power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 195 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 E3-1265L V2 @ 2.50GHz×Intel Xeon E5-2420 @ 1.90GHz+ ADD
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Socket TypeLGA1155LGA1356
CPU ClassServerServer
Clockspeed2.5 GHz1.9 GHz
Turbo SpeedUp to 3.5 GHzUp to 2.4 GHz
# of Physical Cores4 (Threads: 8)6 (Threads: 12)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 384KB, L2: 1.5MB, L3: 15MB
TDP45W95W
Yearly Running Cost$8.21$17.34
Other
First Seen on ChartQ3 2012Q2 2012
# of Samples85110
CPU Rank23862399
CPU Value11.014.1
Single Thread Rating(% diff. to max in group)1595(0.0%)1078(-32.4%)
CPU Mark(% diff. to max in group)5080(0.0%)5018(-1.2%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 14th of March 2026 - Higher results represent better performance
Intel Xeon E3-1265L V2 @ 2.50GHz
5,080
Intel Xeon E5-2420 @ 1.90GHz
5,018
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 14th of March 2026 - Higher results represent better value
Intel Xeon E3-1265L V2 @ 2.50GHz
11.0
Intel Xeon E5-2420 @ 1.90GHz
14.1
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 14th of March 2026 - Higher results represent better performance
Intel Xeon E3-1265L V2 @ 2.50GHz
1,595
Intel Xeon E5-2420 @ 1.90GHz
1,078
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 E3-1265L V2 @ 2.50GHz Intel Xeon E5-2420 @ 1.90GHz
Max TDP45W95W
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.