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Intel Core2 Quad Q9550 vs i7-920

The Intel Core i7-920 @ 2.67GHz is newer than Intel Core2 Quad Q9550 @ 2.83GHz also around 17% faster in multi-threaded (CPU Mark) testing but the CPUs have comparable single-thread rating. However, Intel Core i7-920 @ 2.67GHz uses around 31% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 10494 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 Q9550 @ 2.83GHz×Intel Core i7-920 @ 2.67GHz+ ADD
Price Search Online Search Online
Socket TypeLGA775LGA1366
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.7 GHz
Turbo SpeedNot SupportedUp to 2.9 GHz
# of Physical Cores4 (Threads: 4)4 (Threads: 8)
CacheL1: 256KB, L2: 12.0MB, L3: 0MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP95W130W
Yearly Running Cost$17.34$23.73
Other
First Seen on ChartQ4 2008Q4 2008
# of Samples40816413
CPU Value30.137.9
Single Thread Rating(% diff. to max in group)1216(0.0%)1213(-0.3%)
CPU Mark(% diff. to max in group)2350(-17.4%)2844(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 31st of March 2025 - Higher results represent better performance
Intel Core2 Quad Q9550 @ 2.83GHz
2,350
Intel Core i7-920 @ 2.67GHz
2,844
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 31st of March 2025 - Higher results represent better value
Intel Core2 Quad Q9550 @ 2.83GHz
30.1
Intel Core i7-920 @ 2.67GHz
37.9
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 31st of March 2025 - Higher results represent better performance
Intel Core2 Quad Q9550 @ 2.83GHz
1,216
Intel Core i7-920 @ 2.67GHz
1,213
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 Q9550 @ 2.83GHz Intel Core i7-920 @ 2.67GHz
Max TDP95W130W
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.