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Core i7-7700K vs i7-9850H


Description
The i7-7700K is based on Kaby Lake architecture while the i7-9850H is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7700K gets a score of 291.1 k points while the i7-9850H gets 289.3 k points.

Summarizing, the i7-7700K is 1 times faster than the i7-9850H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906ed
Core
Kaby Lake-S
Coffee Lake-H
Architecture
Base frecuency
4.2 GHz
2.6 GHz
Boost frecuency
4.5 GHz
4.6 GHz
Socket
LGA 1151
BGA 1440
Cores/Threads
4/8
6/12
TDP
95 W
45 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
12288 kB
Date
September 2016
Jun 2019

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
i7-9850H
Test#1 (Integers)
30864
19829 (-35.75%)
Test#2 (FP)
27262
16519 (-39.41%)
Test#3 (Generic, ZIP)
6421
3867 (-39.78%)
Test#1 (Memory)
13994
9021 (-35.54%)
TOTAL
78541
49236 (-37.31%)

Multithread

i7-7700K

i7-9850H
Test#1 (Integers)
129531
130192 (0.51%)
Test#2 (FP)
122200
121438 (-0.62%)
Test#3 (Generic, ZIP)
29617
28052 (-5.28%)
Test#1 (Memory)
9751
9620 (-1.34%)
TOTAL
291099
289302 (-0.62%)

Performance/W
i7-7700K
i7-9850H
Test#1 (Integers)
1363 points/W
2893 points/W
Test#2 (FP)
1286 points/W
2699 points/W
Test#3 (Generic, ZIP)
312 points/W
623 points/W
Test#1 (Memory)
103 points/W
214 points/W
TOTAL
3064 points/W
6429 points/W

Performance/GHz
i7-7700K
i7-9850H
Test#1 (Integers)
6859 points/GHz
4311 points/GHz
Test#2 (FP)
6058 points/GHz
3591 points/GHz
Test#3 (Generic, ZIP)
1427 points/GHz
841 points/GHz
Test#1 (Memory)
3110 points/GHz
1961 points/GHz
TOTAL
17453 points/GHz
10703 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.7.9