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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i5-10400T vs i7-5820K

The Intel Core i5-10400T @ 2.00GHz is newer than Intel Core i7-5820K @ 3.30GHz, while the multi-threaded (CPU Mark) is simliar, Intel Core i5-10400T @ 2.00GHz is around 7% faster in single-thread testing. However, Intel Core i5-10400T @ 2.00GHz uses substantially less power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 4986 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 i5-10400T @ 2.00GHz×Intel Core i7-5820K @ 3.30GHz+ ADD
Price Search Online $139 - BUY
Socket TypeFCLGA1200LGA2011-v3
CPU ClassDesktopDesktop
Clockspeed2.0 GHz3.3 GHz
Turbo SpeedUp to 3.6 GHzUp to 3.6 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)
CacheL1: 384KB, L2: 1.5MB, L3: 12MBL1: 384KB, L2: 1.5MB, L3: 15MB
TDP35W140W
Yearly Running Cost$6.39$25.55
OtherIntel UHD Graphics 630
First Seen on ChartQ3 2020Q3 2014
# of Samples1114875
CPU Value53.670.8
Single Thread Rating(% diff. to max in group)2141(0.0%)1993(-6.9%)
CPU Mark(% diff. to max in group)9754(-0.9%)9841(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 21st of December 2024 - Higher results represent better performance
Intel Core i5-10400T @ 2.00GHz
9,754
Intel Core i7-5820K @ 3.30GHz
9,841
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of December 2024 - Higher results represent better value
Intel Core i5-10400T @ 2.00GHz
53.6
Intel Core i7-5820K @ 3.30GHz
70.8
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of December 2024 - Higher results represent better performance
Intel Core i5-10400T @ 2.00GHz
2,141
Intel Core i7-5820K @ 3.30GHz
1,993
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 Core i5-10400T @ 2.00GHz Intel Core i7-5820K @ 3.30GHz
Max TDP35W140W
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.