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Intel i5-655K vs AMD Phenom II X4 840T

The AMD Phenom II X4 840T is newer than Intel Core i5-655K @ 3.20GHz also around 13% faster in multi-threaded (CPU Mark) testing, but Intel Core i5-655K @ 3.20GHz is around 13% faster in single-thread testing. However, AMD Phenom II X4 840T uses around 26% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 202 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 Core i5-655K @ 3.20GHz×AMD Phenom II X4 840T+ ADD
Price Search Online Search Online
Socket TypeLGA1156AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.9 GHz
Turbo SpeedUp to 3.5 GHzUp to 3.2 GHz
# of Physical Cores2 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 1.0MB, L3: 4MBL1: 512KB, L2: 2.0MB, L3: 6MB
TDP73W95W
Yearly Running Cost$13.32$17.34
Other
First Seen on ChartQ2 2010Q4 2010
# of Samples46156
CPU Value26.240.2
Single Thread Rating(% diff. to max in group)1446(0.0%)1264(-12.6%)
CPU Mark(% diff. to max in group)2017(-13.4%)2330(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of August 2024 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
2,017
AMD Phenom II X4 840T
2,330
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 22nd of August 2024 - Higher results represent better value
Intel Core i5-655K @ 3.20GHz
26.2
AMD Phenom II X4 840T
40.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 22nd of August 2024 - Higher results represent better performance
Intel Core i5-655K @ 3.20GHz
1,446
AMD Phenom II X4 840T
1,264
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 Core i5-655K @ 3.20GHz AMD Phenom II X4 840T
Max TDP73W95W
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.