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Intel Pentium G640T vs Pentium G620T

The Intel Pentium G640T @ 2.40GHz is newer than Intel Pentium G620T @ 2.20GHz and is around 27% faster in multi-threaded (CPU Mark) testing. The Intel Pentium G640T @ 2.40GHz is around 15% 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 36 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 G640T @ 2.40GHz×Intel Pentium G620T @ 2.20GHz+ ADD
Price Search Online $90.1 - BUY
Socket TypeLGA1155LGA1155
CPU ClassDesktopDesktop
Clockspeed2.4 GHz2.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L1: 256KB, L2: 1.0MB,
TDP35W35W
Yearly Running Cost$6.39$6.39
Other
First Seen on ChartQ1 2012Q3 2011
# of Samples1422
CPU Rank43274604
CPU Value12.89.9
Single Thread Rating(% diff. to max in group)1102(0.0%)9613(-12.8%)
CPU Mark(% diff. to max in group)1139(0.0%)896(-21.3%)
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 11th of March 2026 - Higher results represent better performance
Intel Pentium G640T @ 2.40GHz
1,139
Intel Pentium G620T @ 2.20GHz
896
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 11th of March 2026 - Higher results represent better value
Intel Pentium G640T @ 2.40GHz
12.8
Intel Pentium G620T @ 2.20GHz
9.9
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 11th of March 2026 - Higher results represent better performance
Intel Pentium G640T @ 2.40GHz
1,102
Intel Pentium G620T @ 2.20GHz
961
PassMark Software © 2008-2026
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 G640T @ 2.40GHz Intel Pentium G620T @ 2.20GHz
Max TDP35W35W
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.