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Core i9-9900K vs i7-10750H


Description
The i9-9900K is based on Coffee Lake architecture while the i7-10750H is based on Comet Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the i7-10750H gets 349.2 k points.

Summarizing, the i9-9900K is 1.5 times faster than the i7-10750H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
a0652
Core
Coffee Lake-S
Comet Lake-H
Architecture
Base frecuency
3.6 GHz
2.6 GHz
Boost frecuency
5 GHz
5 GHz
Socket
LGA 1151
BGA 1440
Cores/Threads
8/16
6/12
TDP
95 W
45 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
16384 kB
12288 kB
Date
October 2018
April 2020
Mean monothread perf.
81.91k points
75.67k points
Mean multithread perf.
529.32k points
349.21k 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
i9-9900K
i7-10750H
Test#1 (Integers)
5k
4.69k (x0.94)
Test#2 (FP)
20.22k
18.71k (x0.93)
Test#3 (Generic, ZIP)
6.54k
5.84k (x0.89)
Test#1 (Memory)
13.78k
13.95k (x1.01)
TOTAL
45.53k
43.19k (x0.95)

Multithread

i9-9900K

i7-10750H
Test#1 (Integers)
36.39k
18.79k (x0.52)
Test#2 (FP)
166.55k
86.1k (x0.52)
Test#3 (Generic, ZIP)
54.92k
27.42k (x0.5)
Test#1 (Memory)
8.96k
5.27k (x0.59)
TOTAL
266.82k
137.58k (x0.52)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i9-9900K
i7-10750H
Test#1 (Integers)
18.03k
16.63k (x0.92)
Test#2 (FP)
25.98k
24.17k (x0.93)
Test#3 (Generic, ZIP)
6.86k
6.38k (x0.93)
Test#1 (Memory)
14.5k
13.69k (x0.94)
TOTAL
65.37k
60.87k (x0.93)

Multithread

i9-9900K

i7-10750H
Test#1 (Integers)
131.34k
67.07k (x0.51)
Test#2 (FP)
204.76k
107.95k (x0.53)
Test#3 (Generic, ZIP)
55.74k
27.05k (x0.49)
Test#1 (Memory)
8.99k
5.07k (x0.56)
TOTAL
400.83k
207.14k (x0.52)

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
i9-9900K
i7-10750H
Test#1 (Integers)
17.98k
16.71k (x0.93)
Test#2 (FP)
27.04k
25.45k (x0.94)
Test#3 (Generic, ZIP)
6.63k
6.06k (x0.92)
Test#1 (Memory)
13.6k
13.2k (x0.97)
TOTAL
65.24k
61.43k (x0.94)

Multithread

i9-9900K

i7-10750H
Test#1 (Integers)
130.88k
67.59k (x0.52)
Test#2 (FP)
208.5k
111.94k (x0.54)
Test#3 (Generic, ZIP)
54.12k
27.7k (x0.51)
Test#1 (Memory)
8.91k
5.3k (x0.6)
TOTAL
402.41k
212.53k (x0.53)

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
i9-9900K
i7-10750H
Test#1 (Integers)
32.08k
29.06k (x0.91)
Test#2 (FP)
28.17k
26.49k (x0.94)
Test#3 (Generic, ZIP)
6.68k
6.23k (x0.93)
Test#1 (Memory)
14.98k
13.89k (x0.93)
TOTAL
81.91k
75.67k (x0.92)

Multithread

i9-9900K

i7-10750H
Test#1 (Integers)
242.98k
154.61k (x0.64)
Test#2 (FP)
220.16k
151.34k (x0.69)
Test#3 (Generic, ZIP)
53.97k
36.33k (x0.67)
Test#1 (Memory)
12.22k
6.93k (x0.57)
TOTAL
529.32k
349.21k (x0.66)

Performance/W
i9-9900K
i7-10750H
Test#1 (Integers)
2558 points/W
3436 points/W
Test#2 (FP)
2317 points/W
3363 points/W
Test#3 (Generic, ZIP)
568 points/W
807 points/W
Test#1 (Memory)
129 points/W
154 points/W
TOTAL
5572 points/W
7760 points/W

Performance/GHz
i9-9900K
i7-10750H
Test#1 (Integers)
6417 points/GHz
5811 points/GHz
Test#2 (FP)
5634 points/GHz
5298 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
1246 points/GHz
Test#1 (Memory)
2996 points/GHz
2778 points/GHz
TOTAL
16382 points/GHz
15133 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. 3.11.4