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Intel Pentium G640 vs Core2 Duo E8400

The Intel Pentium G640 @ 2.80GHz is newer than Intel Core2 Duo E8400 @ 3.00GHz also around 11% faster in multi-threaded (CPU Mark) testing, it is around 5% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 7473 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 Pentium G640 @ 2.80GHz×Intel Core2 Duo E8400 @ 3.00GHz+ ADD
Price $30 - BUY Search Online
Socket TypeLGA1155LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 128KB, L2: 0.5MB, L3: 3MBL1: 128KB, L2: 6.0MB, L3: 0MB
TDP65W65W
Yearly Running Cost$11.86$11.86
Other
First Seen on ChartQ3 2012Q4 2008
# of Samples2407233
CPU Value45.052.4
Single Thread Rating(% diff. to max in group)1306(0.0%)12373(-5.2%)
CPU Mark(% diff. to max in group)1349(0.0%)1206(-10.6%)
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 24th of November 2024 - Higher results represent better performance
Intel Pentium G640 @ 2.80GHz
1,349
Intel Core2 Duo E8400 @ 3.00GHz
1,206
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 24th of November 2024 - Higher results represent better value
Intel Pentium G640 @ 2.80GHz
45.0
Intel Core2 Duo E8400 @ 3.00GHz
52.4
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 24th of November 2024 - Higher results represent better performance
Intel Pentium G640 @ 2.80GHz
1,306
Intel Core2 Duo E8400 @ 3.00GHz
1,237
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 Pentium G640 @ 2.80GHz Intel Core2 Duo E8400 @ 3.00GHz
Max TDP65W65W
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.