Core i7-7700K vs i7-5820K
Description
The i7-7700K is based on Kaby Lake architecture while the i7-5820K is based on Haswell.
Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the i7-5820K gets 129.1 k points.
Summarizing, the i7-7700K is 1.8 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the i7-5820K gets 129.1 k points.
Summarizing, the i7-7700K is 1.8 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
306f2
Core
Kaby Lake-S
Haswell-E
Base frecuency
4.2 GHz
3.3 GHz
Boost frecuency
4.5 GHz
3.6 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
4/8
6/12
TDP
95 W
140 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
15360 kB
Date
September 2016
September 2014
Mean monothread perf.
76.9k points
31.53k points
Mean multithread perf.
289.82k points
129.06k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-7700K
i7-5820K
Test#1 (Integers)
4.63k
3.82k (x0.83)
Test#2 (FP)
18.92k
9.64k (x0.51)
Test#3 (Generic, ZIP)
6.22k
4.29k (x0.69)
Test#1 (Memory)
13.92k
3.78k (x0.27)
TOTAL
43.7k
21.53k (x0.49)
Multithread
i7-7700K
i7-5820K
Test#1 (Integers)
18.53k
18.07k (x0.98)
Test#2 (FP)
86.49k
64.25k (x0.74)
Test#3 (Generic, ZIP)
28.78k
27.03k (x0.94)
Test#1 (Memory)
9.67k
8.03k (x0.83)
TOTAL
143.47k
117.38k (x0.82)
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-7700K
i7-5820K
Test#1 (Integers)
17.55k
12.03k (x0.69)
Test#2 (FP)
27.82k
11.23k (x0.4)
Test#3 (Generic, ZIP)
6.8k
4.55k (x0.67)
Test#1 (Memory)
14.83k
3.72k (x0.25)
TOTAL
67k
31.53k (x0.47)
Multithread
i7-7700K
i7-5820K
Test#1 (Integers)
68.4k
49.48k (x0.72)
Test#2 (FP)
118.8k
52.21k (x0.44)
Test#3 (Generic, ZIP)
33.34k
19.7k (x0.59)
Test#1 (Memory)
17.43k
7.67k (x0.44)
TOTAL
237.97k
129.06k (x0.54)
Performance/W
i7-7700K
i7-5820K
Test#1 (Integers)
720 points/W
353 points/W
Test#2 (FP)
1251 points/W
373 points/W
Test#3 (Generic, ZIP)
351 points/W
141 points/W
Test#1 (Memory)
184 points/W
55 points/W
TOTAL
2505 points/W
922 points/W
Performance/GHz
i7-7700K
i7-5820K
Test#1 (Integers)
3900 points/GHz
3343 points/GHz
Test#2 (FP)
6183 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1510 points/GHz
1264 points/GHz
Test#1 (Memory)
3296 points/GHz
1033 points/GHz
TOTAL
14889 points/GHz
8759 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4