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Intel Core2 Quad Q8400 vs AMD Phenom 9850 Quad-

The Intel Core2 Quad Q8400 @ 2.66GHz is newer than AMD Phenom 9850 Quad-Core also around 17% faster in multi-threaded (CPU Mark) testing, it is around 18% faster in single-thread testing. However, AMD Phenom 9850 Quad-Core uses around 27% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 2115 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 Q8400 @ 2.66GHz×AMD Phenom 9850 Quad-Core+ ADD
Price Search Online Search Online
Socket TypeLGA775AM2+
CPU ClassDesktopDesktop
Clockspeed2.7 GHz2.5 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 4.0MB, L3: 0MBL1: 512KB, L2: 2.0MB, L3: 2MB
TDP95W125W
Yearly Running Cost$17.34$22.81
Other
First Seen on ChartQ2 2009Q4 2008
# of Samples1630485
CPU Value16.013.2
Single Thread Rating(% diff. to max in group)1144(0.0%)938(-18.0%)
CPU Mark(% diff. to max in group)2065(0.0%)1712(-17.1%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 27th of July 2024 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
2,065
AMD Phenom 9850 Quad-Core
1,712
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 27th of July 2024 - Higher results represent better value
Intel Core2 Quad Q8400 @ 2.66GHz
16.0
AMD Phenom 9850 Quad-Core
13.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 27th of July 2024 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
1,144
AMD Phenom 9850 Quad-Core
938
PassMark Software © 2008-2024

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
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 Q8400 @ 2.66GHzAMD Phenom 9850 Quad-Core
Max TDP95W125W
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.