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Intel Core2 Duo E8400 vs AMD Phenom II X2 560

The AMD Phenom II X2 560 is newer than Intel Core2 Duo E8400 @ 3.00GHz and is around 13% faster in multi-threaded (CPU Mark) testing. The AMD Phenom II X2 560 is around 11% faster in single-thread testing. Also, AMD Phenom II X2 560 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 7609 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 Core2 Duo E8400 @ 3.00GHz×AMD Phenom II X2 560+ ADD
Price Search Online Search Online
Socket TypeLGA775AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 6.0MB, L3: 0MBL1: 256KB, L2: 1.0MB, L3: 6MB
TDP65W80W
Yearly Running Cost$11.86$14.60
Other
First Seen on ChartQ4 2008Q4 2010
# of Samples7414195
CPU Rank42214080
CPU Value53.078.0
Single Thread Rating(% diff. to max in group)12353(-9.5%)1365(0.0%)
CPU Mark(% diff. to max in group)1220(-11.7%)1381(0.0%)
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 19th of February 2026 - Higher results represent better performance
Intel Core2 Duo E8400 @ 3.00GHz
1,220
AMD Phenom II X2 560
1,381
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 19th of February 2026 - Higher results represent better value
Intel Core2 Duo E8400 @ 3.00GHz
53.0
AMD Phenom II X2 560
78.0
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 19th of February 2026 - Higher results represent better performance
Intel Core2 Duo E8400 @ 3.00GHz
1,235
AMD Phenom II X2 560
1,365
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 Core2 Duo E8400 @ 3.00GHz AMD Phenom II X2 560
Max TDP65W80W
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.