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Core i7-9850H vs i9-9900K


Description
Both models i7-9850H and i9-9900K 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 i7-9850H gets a score of 289.3 k points while the i9-9900K gets 529.3 k points.

Summarizing, the i9-9900K is 1.8 times faster than the i7-9850H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
906ed
Core
Coffee Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.6 GHz
3.6 GHz
Boost frecuency
4.6 GHz
5 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
6/12
8/16
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
16384 kB
Date
June 2019
October 2018
Mean monothread perf.
49.24k points
81.91k points
Mean multithread perf.
289.3k points
529.32k 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
i7-9850H
i9-9900K
Test#1 (Integers)
4.11k
5k (x1.22)
Test#2 (FP)
15.19k
20.22k (x1.33)
Test#3 (Generic, ZIP)
5.04k
6.54k (x1.3)
Test#1 (Memory)
11.98k
13.78k (x1.15)
TOTAL
36.32k
45.53k (x1.25)

Multithread

i7-9850H

i9-9900K
Test#1 (Integers)
22.68k
36.39k (x1.6)
Test#2 (FP)
83.77k
166.55k (x1.99)
Test#3 (Generic, ZIP)
30.37k
54.92k (x1.81)
Test#1 (Memory)
8.55k
8.96k (x1.05)
TOTAL
145.37k
266.82k (x1.84)

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
i7-9850H
i9-9900K
Test#1 (Integers)
14.5k
18.03k (x1.24)
Test#2 (FP)
20.73k
25.98k (x1.25)
Test#3 (Generic, ZIP)
5.31k
6.86k (x1.29)
Test#1 (Memory)
11.09k
14.5k (x1.31)
TOTAL
51.62k
65.37k (x1.27)

Multithread

i7-9850H

i9-9900K
Test#1 (Integers)
77.18k
131.34k (x1.7)
Test#2 (FP)
126.35k
204.76k (x1.62)
Test#3 (Generic, ZIP)
33.63k
55.74k (x1.66)
Test#1 (Memory)
7.87k
8.99k (x1.14)
TOTAL
245.03k
400.83k (x1.64)

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
i7-9850H
i9-9900K
Test#1 (Integers)
19.83k
32.08k (x1.62)
Test#2 (FP)
16.52k
28.17k (x1.71)
Test#3 (Generic, ZIP)
3.87k
6.68k (x1.73)
Test#1 (Memory)
9.02k
14.98k (x1.66)
TOTAL
49.24k
81.91k (x1.66)

Multithread

i7-9850H

i9-9900K
Test#1 (Integers)
130.19k
242.98k (x1.87)
Test#2 (FP)
121.44k
220.16k (x1.81)
Test#3 (Generic, ZIP)
28.05k
53.97k (x1.92)
Test#1 (Memory)
9.62k
12.22k (x1.27)
TOTAL
289.3k
529.32k (x1.83)

Performance/W
i7-9850H
i9-9900K
Test#1 (Integers)
2893 points/W
2558 points/W
Test#2 (FP)
2699 points/W
2317 points/W
Test#3 (Generic, ZIP)
623 points/W
568 points/W
Test#1 (Memory)
214 points/W
129 points/W
TOTAL
6429 points/W
5572 points/W

Performance/GHz
i7-9850H
i9-9900K
Test#1 (Integers)
4311 points/GHz
6417 points/GHz
Test#2 (FP)
3591 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
841 points/GHz
1335 points/GHz
Test#1 (Memory)
1961 points/GHz
2996 points/GHz
TOTAL
10703 points/GHz
16382 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