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Over 1,000,000 CPUs benchmarked

Intel i7-7740X vs i7-7700K

The Intel Core i7-7740X @ 4.30GHz is newer than Intel Core i7-7700K @ 4.20GHz and has comparable multi-threaded (CPU Mark) and single-thread rating. However, Intel Core i7-7740X @ 4.30GHz uses around 16% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 12541 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 i7-7740X @ 4.30GHz×Intel Core i7-7700K @ 4.20GHz+ ADD
Price $122 - BUY $129.99 - BUY
Socket TypeFCLGA2066 LGA 1151
CPU ClassDesktopDesktop
Clockspeed4.3 GHz4.2 GHz
Turbo SpeedUp to 4.5 GHzUp to 4.5 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP112W95W
Yearly Running Cost$20.44$17.34
Other
First Seen on ChartQ3 2017Q4 2016
# of Samples21312328
CPU Value78.974.2
Single Thread Rating(% diff. to max in group)2693(-0.9%)2717(0.0%)
CPU Mark(% diff. to max in group)9621(-0.3%)9646(0.0%)

CPU Mark Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Core i7-7740X @ 4.30GHz
9,621
Intel Core i7-7700K @ 4.20GHz
9,646
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 22nd of December 2024 - Higher results represent better value
Intel Core i7-7740X @ 4.30GHz
78.9
Intel Core i7-7700K @ 4.20GHz
74.2
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Core i7-7740X @ 4.30GHz
2,693
Intel Core i7-7700K @ 4.20GHz
2,717
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 i7-7740X @ 4.30GHz Intel Core i7-7700K @ 4.20GHz
Max TDP112W95W
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.