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Over 1,000,000 CPUs benchmarked

Intel i7-4771 vs i7-6700K

The Intel Core i7-6700K @ 4.00GHz is newer than Intel Core i7-4771 @ 3.50GHz also around 20% faster in multi-threaded (CPU Mark) testing, it is around 13% faster in single-thread testing. However, Intel Core i7-6700K @ 4.00GHz uses around 12% more power. All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 17958 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 i7-4771 @ 3.50GHz×Intel Core i7-6700K @ 4.00GHz+ ADD
Price $109 - BUY $78.33 - BUY
Socket TypeLGA1150LGA1151
CPU ClassDesktopDesktop
Clockspeed3.5 GHz4.0 GHz
Turbo SpeedUp to 3.9 GHzUp to 4.2 GHz
# of Physical Cores4 (Threads: 8)4 (Threads: 8)
CacheL1: 256KB, L2: 1.0MB, L3: 8MBL1: 256KB, L2: 1.0MB, L3: 8MB
TDP84W95W
Yearly Running Cost$15.33$17.34
Other
First Seen on ChartQ1 2013Q3 2015
# of Samples112016838
CPU Value65.3114.1
Single Thread Rating(% diff. to max in group)2191(-12.5%)2504(0.0%)
CPU Mark(% diff. to max in group)7121(-20.3%)8936(0.0%)

CPU Mark Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Core i7-4771 @ 3.50GHz
7,121
Intel Core i7-6700K @ 4.00GHz
8,936
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 15th of January 2025 - Higher results represent better value
Intel Core i7-4771 @ 3.50GHz
65.3
Intel Core i7-6700K @ 4.00GHz
114.1
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 15th of January 2025 - Higher results represent better performance
Intel Core i7-4771 @ 3.50GHz
2,191
Intel Core i7-6700K @ 4.00GHz
2,504
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 i7-4771 @ 3.50GHz Intel Core i7-6700K @ 4.00GHz
Max TDP84W95W
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.