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Intel Core2 Quad Q6600 vs AMD Phenom II X4 820

The AMD Phenom II X4 820 is newer than Intel Core2 Quad Q6600 @ 2.40GHz also around 12% faster in multi-threaded (CPU Mark) testing, it is around 15% faster in single-thread testing. However, Intel Core2 Quad Q6600 @ 2.40GHz uses around 10% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 7744 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 Quad Q6600 @ 2.40GHz×AMD Phenom II X4 820+ ADD
Price Search Online Search Online
Socket TypeLGA775AM3
CPU ClassDesktopDesktop
Clockspeed2.4 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 8.0MB, L3: 0MBL1: 512KB, L2: 2.0MB, L3: 4MB
TDP105W95W
Yearly Running Cost$19.16$17.34
Other
First Seen on ChartQ4 2008Q4 2009
# of Samples7514230
CPU Value38.143.3
Single Thread Rating(% diff. to max in group)953(-15.0%)1121(0.0%)
CPU Mark(% diff. to max in group)1830(-12.1%)2081(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core2 Quad Q6600 @ 2.40GHz
1,830
AMD Phenom II X4 820
2,081
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 5th of February 2025 - Higher results represent better value
Intel Core2 Quad Q6600 @ 2.40GHz
38.1
AMD Phenom II X4 820
43.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 5th of February 2025 - Higher results represent better performance
Intel Core2 Quad Q6600 @ 2.40GHz
953
AMD Phenom II X4 820
1,121
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 Core2 Quad Q6600 @ 2.40GHz AMD Phenom II X4 820
Max TDP105W95W
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.