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AMD Phenom II X2 555 vs Intel Core2 Duo E6750

The AMD Phenom II X2 555 is newer than Intel Core2 Duo E6750 @ 2.66GHz also around 22% faster in multi-threaded (CPU Mark) testing, it is around 21% faster in single-thread testing. However, AMD Phenom II X2 555 uses around 21% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 1956 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.

×AMD Phenom II X2 555×Intel Core2 Duo E6750 @ 2.66GHz+ ADD
Price Search Online Search Online
Socket TypeAM2+/AM3LGA775
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L3: 6MBL1: 128KB, L2: 4.0MB, L3: 0MB
TDP80W65W
Yearly Running Cost$14.60$11.86
Other
First Seen on ChartQ1 2010Q4 2008
# of Samples4841472
CPU Value100.498.9
Single Thread Rating(% diff. to max in group)1304(0.0%)10293(-21.1%)
CPU Mark(% diff. to max in group)1308(0.0%)1019(-22.2%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 7th of April 2025 - Higher results represent better performance
AMD Phenom II X2 555
1,308
Intel Core2 Duo E6750 @ 2.66GHz
1,019
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 7th of April 2025 - Higher results represent better value
AMD Phenom II X2 555
100.4
Intel Core2 Duo E6750 @ 2.66GHz
98.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 7th of April 2025 - Higher results represent better performance
AMD Phenom II X2 555
1,304
Intel Core2 Duo E6750 @ 2.66GHz
1,029
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.
AMD Phenom II X2 555 Intel Core2 Duo E6750 @ 2.66GHz
Max TDP80W65W
Power consumption per day (kWh)0.160.13
Running cost per day$0.040$0.033
Power consumption per year (kWh)58.447.5
Running cost per year$14.60$11.86
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.