Core i7-9750H vs i7-9700K
Description
Both models i7-9750H and i7-9700K are based on Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i7-9750H gets a score of 276.5 k points while the i7-9700K gets 460 k points.
Summarizing, the i7-9700K is 1.7 times faster than the i7-9750H. To get a proper comparison between both models, take a look to the data shown below.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i7-9750H gets a score of 276.5 k points while the i7-9700K gets 460 k points.
Summarizing, the i7-9700K is 1.7 times faster than the i7-9750H. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
906ec
Core
Coffee Lake-H
Coffee Lake-S
Base frecuency
2.6 GHz
3.6 GHz
Boost frecuency
4.5 GHz
4.9 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
6/12
8/8
TDP
45 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x256 kB
Cache L3
12288 kB
12288 kB
Date
April 2019
October 2018
Mean monothread perf.
62.92k points
73.62k points
Mean multithread perf.
276.46k points
460.02k points
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
i7-9750H
i7-9700K
Test#1 (Integers)
25.22k
29.3k (x1.16)
Test#2 (FP)
21.97k
25.61k (x1.17)
Test#3 (Generic, ZIP)
5.02k
5.86k (x1.17)
Test#1 (Memory)
10.71k
12.86k (x1.2)
TOTAL
62.92k
73.62k (x1.17)
Multithread
i7-9750H
i7-9700K
Test#1 (Integers)
125.56k
217.77k (x1.73)
Test#2 (FP)
115.86k
190.46k (x1.64)
Test#3 (Generic, ZIP)
25.63k
40.48k (x1.58)
Test#1 (Memory)
9.4k
11.31k (x1.2)
TOTAL
276.46k
460.02k (x1.66)
Performance/W
i7-9750H
i7-9700K
Test#1 (Integers)
2790 points/W
2292 points/W
Test#2 (FP)
2575 points/W
2005 points/W
Test#3 (Generic, ZIP)
570 points/W
426 points/W
Test#1 (Memory)
209 points/W
119 points/W
TOTAL
6144 points/W
4842 points/W
Performance/GHz
i7-9750H
i7-9700K
Test#1 (Integers)
5605 points/GHz
5981 points/GHz
Test#2 (FP)
4882 points/GHz
5226 points/GHz
Test#3 (Generic, ZIP)
1115 points/GHz
1195 points/GHz
Test#1 (Memory)
2380 points/GHz
2624 points/GHz
TOTAL
13982 points/GHz
15025 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