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Intel Xeon E5649 vs Xeon E5-1660

The Intel Xeon E5-1660 @ 3.30GHz is newer than Intel Xeon E5649 @ 2.53GHz and is around 48% faster in multi-threaded (CPU Mark) testing. The Intel Xeon E5-1660 @ 3.30GHz is around 36% faster in single-thread testing. Also, Intel Xeon E5-1660 @ 3.30GHz uses around 48% more power. All the CPUs in this comparison belong in the Server CPU Class. The values below were tabulated from a combined 299 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 E5-1660 @ 3.30GHz+ ADD
Price $129.95 - BUY Search Online
Socket TypeLGA1366LGA2011
CPU ClassServerServer
Clockspeed2.5 GHz3.3 GHz
Turbo SpeedUp to 2.9 GHzUp to 3.9 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 15MB
TDP80W130W
Yearly Running Cost$14.60$23.73
Other
First Seen on ChartQ3 2011Q3 2012
# of Samples44255
CPU Value43.531.3
Single Thread Rating(% diff. to max in group)1316(-26.4%)1789(0.0%)
CPU Mark(% diff. to max in group)5659(-32.4%)8369(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Xeon E5649 @ 2.53GHz
5,659
Intel Xeon E5-1660 @ 3.30GHz
8,369
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 24th of April 2025 - Higher results represent better value
Intel Xeon E5649 @ 2.53GHz
43.5
Intel Xeon E5-1660 @ 3.30GHz
31.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 24th of April 2025 - Higher results represent better performance
Intel Xeon E5649 @ 2.53GHz
1,316
Intel Xeon E5-1660 @ 3.30GHz
1,789
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 E5-1660 @ 3.30GHz
Max TDP80W130W
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.