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Core i9-9900K vs i7-9850H


Description
Both models i9-9900K and i7-9850H 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 i9-9900K gets a score of 529.3 k points while the i7-9850H gets 289.3 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-S
Coffee Lake-H
Architecture
Base frecuency
3.6 GHz
2.6 GHz
Boost frecuency
5 GHz
4.6 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
June 2019
Mean monothread perf.
81.91k points
49.24k points
Mean multithread perf.
529.32k points
289.3k 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
i7-9850H
Test#1 (Integers)
5k
4.11k (x0.82)
Test#2 (FP)
20.22k
15.19k (x0.75)
Test#3 (Generic, ZIP)
6.54k
5.04k (x0.77)
Test#1 (Memory)
13.78k
11.98k (x0.87)
TOTAL
45.53k
36.32k (x0.8)

Multithread

i9-9900K

i7-9850H
Test#1 (Integers)
36.39k
22.68k (x0.62)
Test#2 (FP)
166.55k
83.77k (x0.5)
Test#3 (Generic, ZIP)
54.92k
30.37k (x0.55)
Test#1 (Memory)
8.96k
8.55k (x0.95)
TOTAL
266.82k
145.37k (x0.54)

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
i7-9850H
Test#1 (Integers)
18.03k
14.5k (x0.8)
Test#2 (FP)
25.98k
20.73k (x0.8)
Test#3 (Generic, ZIP)
6.86k
5.31k (x0.77)
Test#1 (Memory)
14.5k
11.09k (x0.76)
TOTAL
65.37k
51.62k (x0.79)

Multithread

i9-9900K

i7-9850H
Test#1 (Integers)
131.34k
77.18k (x0.59)
Test#2 (FP)
204.76k
126.35k (x0.62)
Test#3 (Generic, ZIP)
55.74k
33.63k (x0.6)
Test#1 (Memory)
8.99k
7.87k (x0.88)
TOTAL
400.83k
245.03k (x0.61)

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
i7-9850H
Test#1 (Integers)
32.08k
19.83k (x0.62)
Test#2 (FP)
28.17k
16.52k (x0.59)
Test#3 (Generic, ZIP)
6.68k
3.87k (x0.58)
Test#1 (Memory)
14.98k
9.02k (x0.6)
TOTAL
81.91k
49.24k (x0.6)

Multithread

i9-9900K

i7-9850H
Test#1 (Integers)
242.98k
130.19k (x0.54)
Test#2 (FP)
220.16k
121.44k (x0.55)
Test#3 (Generic, ZIP)
53.97k
28.05k (x0.52)
Test#1 (Memory)
12.22k
9.62k (x0.79)
TOTAL
529.32k
289.3k (x0.55)

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

Performance/GHz
i9-9900K
i7-9850H
Test#1 (Integers)
6417 points/GHz
4311 points/GHz
Test#2 (FP)
5634 points/GHz
3591 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
841 points/GHz
Test#1 (Memory)
2996 points/GHz
1961 points/GHz
TOTAL
16382 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. 3.11.4