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Intel Xeon E5-1660 vs Xeon E3-1280 v3

The Intel Xeon E3-1280 v3 @ 3.60GHz is newer than Intel Xeon E5-1660 @ 3.30GHz and is around -13% slower in multi-threaded (CPU Mark) testing. The Intel Xeon E3-1280 v3 @ 3.60GHz is around 25% faster in single-thread testing. Also, Intel Xeon E5-1660 @ 3.30GHz uses around 45% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 336 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 E5-1660 @ 3.30GHz×Intel Xeon E3-1280 v3 @ 3.60GHz+ ADD
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Socket TypeLGA2011LGA1150
CPU ClassServerServer
Clockspeed3.3 GHz3.6 GHz
Turbo SpeedUp to 3.9 GHzUp to 4.0 GHz
# of Physical Cores6 (Threads: 12)4 (Threads: 8)
CacheL1: 384KB, L2: 1.5MB, L3: 15MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP130W82W
Yearly Running Cost$23.73$14.97
Other
First Seen on ChartQ3 2012Q2 2013
# of Samples26274
CPU Rank17331901
CPU Value31.228.9
Single Thread Rating(% diff. to max in group)1783(-19.8%)2223(0.0%)
CPU Mark(% diff. to max in group)8324(0.0%)7208(-13.4%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 14th of February 2026 - Higher results represent better performance
Intel Xeon E5-1660 @ 3.30GHz
8,324
Intel Xeon E3-1280 v3 @ 3.60GHz
7,208
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 14th of February 2026 - Higher results represent better value
Intel Xeon E5-1660 @ 3.30GHz
31.2
Intel Xeon E3-1280 v3 @ 3.60GHz
28.9
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 14th of February 2026 - Higher results represent better performance
Intel Xeon E5-1660 @ 3.30GHz
1,783
Intel Xeon E3-1280 v3 @ 3.60GHz
2,223
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 E5-1660 @ 3.30GHz Intel Xeon E3-1280 v3 @ 3.60GHz
Max TDP130W82W
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.