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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel i7-6800K vs i7-7800X vs i7-14700K vs i9-14900K

All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 12771 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 i7-6800K @ 3.40GHz×Intel Core i7-7800X @ 3.50GHz×Intel Core i7-14700K×Intel Core i9-14900K+ ADD
Price Search Online Search Online $319 - BUY $447 - BUY
Socket TypeLGA2011-v3FCLGA2066FCLGA1700FCLGA1700
CPU ClassDesktopDesktopDesktopDesktop
Clockspeed3.4 GHz3.5 GHz3.4 GHz3.2 GHz
Turbo SpeedUp to 3.8 GHzUp to 4.0 GHzUp to 5.6 GHzUp to 6.0 GHz
# of Physical Cores6 (Threads: 12)6 (Threads: 12)20 (Threads: 28)24 (Threads: 32)
CacheL1: 384KB, L2: 1.5MB, L3: 15MBL1: 384KB, L2: 6.0MB, L3: 8MBL1: 1,792KB, L2: 28.0MB, L3: 33MBL1: 2,176KB, L2: 32.0MB, L3: 36MB
TDP140W140W125W125W
Yearly Running Cost$25.55$25.55$22.81$22.81
OtherIntel UHD Graphics 770Intel UHD Graphics 770
First Seen on ChartQ2 2016Q2 2017Q4 2023Q4 2023
# of Samples183463941606138
CPU Value0.00.0165.2132.2
Single Thread Rating(% diff. to max in group)2261(-52.0%)2381(-49.5%)4478(-5.0%)4711(0.0%)
CPU Mark(% diff. to max in group)10734(-81.8%)12907(-78.2%)52712(-10.8%)59101(0.0%)

CPU Mark Rating
As of 16th of April 2025 - Higher results represent better performance
Intel Core i7-6800K @ 3.40GHz
10,734
Intel Core i7-7800X @ 3.50GHz
12,907
Intel Core i7-14700K
52,712
Intel Core i9-14900K
59,101
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 16th of April 2025 - Higher results represent better value
Intel Core i7-6800K @ 3.40GHz
NA
Intel Core i7-7800X @ 3.50GHz
NA
Intel Core i7-14700K
165.2
Intel Core i9-14900K
132.2
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 16th of April 2025 - Higher results represent better performance
Intel Core i7-6800K @ 3.40GHz
2,261
Intel Core i7-7800X @ 3.50GHz
2,381
Intel Core i7-14700K
4,478
Intel Core i9-14900K
4,711
PassMark Software © 2008-2025
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 i7-6800K @ 3.40GHz Intel Core i7-7800X @ 3.50GHz Intel Core i7-14700K Intel Core i9-14900K
Max TDP140W140W125W125W
Power consumption per day (kWh)NANANANA
Running cost per dayNANANANA
Power consumption per year (kWh)NANANANA
Running cost per yearNANANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.