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Intel i3-2120T vs Pentium G840

The Intel Core i3-2120T @ 2.60GHz is newer than Intel Pentium G840 @ 2.80GHz also around 18% faster in multi-threaded (CPU Mark) testing, but Intel Pentium G840 @ 2.80GHz is around 8% faster in single-thread testing. However, Intel Core i3-2120T @ 2.60GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 349 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 Core i3-2120T @ 2.60GHz×Intel Pentium G840 @ 2.80GHz+ ADD
Price $50 - BUY Search Online
Socket TypeLGA1155FCLGA1155
CPU ClassDesktopDesktop
Clockspeed2.6 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 4)2 (Threads: 2)
CacheL1: 256KB, L2: 1.0MB, L1: 256KB, L2: 1.0MB, L3: 3MB
TDP35W65W
Yearly Running Cost$6.39$11.86
Other
First Seen on ChartQ3 2011Q2 2011
# of Samples129220
CPU Value30.621.7
Single Thread Rating(% diff. to max in group)1165(-8.3%)12713(0.0%)
CPU Mark(% diff. to max in group)1528(0.0%)1253(-18.0%)
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 8th of October 2024 - Higher results represent better performance
Intel Core i3-2120T @ 2.60GHz
1,528
Intel Pentium G840 @ 2.80GHz
1,253
CPU Value (CPU Mark / $Price)
As of 8th of October 2024 - Higher results represent better value
Intel Core i3-2120T @ 2.60GHz
30.6
Intel Pentium G840 @ 2.80GHz
21.7
CPU Single Thread Rating
As of 8th of October 2024 - Higher results represent better performance
Intel Core i3-2120T @ 2.60GHz
1,165
Intel Pentium G840 @ 2.80GHz
1,271
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 Core i3-2120T @ 2.60GHz Intel Pentium G840 @ 2.80GHz
Max TDP35W65W
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.