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 290.4 k points while the i7-5820K gets 251 k points.
Summarizing, the i7-7700K is 1.2 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 290.4 k points while the i7-5820K gets 251 k points.
Summarizing, the i7-7700K is 1.2 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.
76.55k points
39.16k points
Mean multithread perf.
290.36k points
250.98k 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)
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i7-7700K
i7-5820K
Test#1 (Integers)
30.32k
19.86k (x0.65)
Test#2 (FP)
26.77k
11.2k (x0.42)
Test#3 (Generic, ZIP)
6.22k
4.43k (x0.71)
Test#1 (Memory)
13.24k
3.67k (x0.28)
TOTAL
76.55k
39.16k (x0.51)
Multithread
i7-7700K
i7-5820K
Test#1 (Integers)
127.99k
126.19k (x0.99)
Test#2 (FP)
123.97k
83.02k (x0.67)
Test#3 (Generic, ZIP)
29.35k
32.36k (x1.1)
Test#1 (Memory)
9.04k
9.41k (x1.04)
TOTAL
290.36k
250.98k (x0.86)
Performance/W
i7-7700K
i7-5820K
Test#1 (Integers)
1347 points/W
901 points/W
Test#2 (FP)
1305 points/W
593 points/W
Test#3 (Generic, ZIP)
309 points/W
231 points/W
Test#1 (Memory)
95 points/W
67 points/W
TOTAL
3056 points/W
1793 points/W
Performance/GHz
i7-7700K
i7-5820K
Test#1 (Integers)
6738 points/GHz
5516 points/GHz
Test#2 (FP)
5949 points/GHz
3112 points/GHz
Test#3 (Generic, ZIP)
1383 points/GHz
1232 points/GHz
Test#1 (Memory)
2941 points/GHz
1019 points/GHz
TOTAL
17010 points/GHz
10878 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