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Intel Xeon E5645 vs i7-980X

The Intel Xeon E5645 @ 2.40GHz is newer than Intel Core i7-980X @ 3.33GHz, while Intel Core i7-980X @ 3.33GHz is around 26% faster in multi-threaded (CPU Mark) testing, it is around 24% faster in single-thread testing. However, Intel Core i7-980X @ 3.33GHz uses around 48% more power. The CPUs selected in this comparison belong in different CPU Classes: Server, Desktop. Consider, selecting CPUs from simliar CPU Class for more apt comparison.The values below were tabulated from a combined 943 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 E5645 @ 2.40GHz×Intel Core i7-980X @ 3.33GHz+ ADD
Price Search Online $49.99 - BUY
Socket TypeLGA1366LGA1366
CPU ClassServerDesktop
Clockspeed2.4 GHz3.3 GHz
Turbo SpeedUp to 2.7 GHzUp to 3.6 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 12MB
TDP80W130W
Yearly Running Cost$14.60$23.73
Other
First Seen on ChartQ2 2011Q1 2010
# of Samples100843
CPU Value36.8136.6
Single Thread Rating(% diff. to max in group)1156(-24.2%)1526(0.0%)
CPU Mark(% diff. to max in group)5048(-26.0%)6826(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of December 2024 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
5,048
Intel Core i7-980X @ 3.33GHz
6,826
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 26th of December 2024 - Higher results represent better value
Intel Xeon E5645 @ 2.40GHz
36.8
Intel Core i7-980X @ 3.33GHz
136.6
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 26th of December 2024 - Higher results represent better performance
Intel Xeon E5645 @ 2.40GHz
1,156
Intel Core i7-980X @ 3.33GHz
1,526
PassMark Software © 2008-2024
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 E5645 @ 2.40GHz Intel Core i7-980X @ 3.33GHz
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.