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Core i7-7500U vs i7-9850H


Description
The i7-7500U is based on Kaby Lake architecture while the i7-9850H is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-9850H gets 289.3 k points.

Summarizing, the i7-9850H is 3.3 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
906ed
Core
Kaby Lake-U
Coffee Lake-H
Architecture
Base frecuency
2.7 GHz
2.6 GHz
Boost frecuency
3.5 GHz
4.6 GHz
Socket
BGA1356
BGA 1440
Cores/Threads
2/4
6/12
TDP
15 W
45 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
4096 kB
12288 kB
Date
August 2016
June 2019
Mean monothread perf.
48.67k points
49.24k points
Mean multithread perf.
86.94k 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
i7-7500U
i7-9850H
Test#1 (Integers)
3.53k
4.11k (x1.17)
Test#2 (FP)
14.67k
15.19k (x1.04)
Test#3 (Generic, ZIP)
4.84k
5.04k (x1.04)
Test#1 (Memory)
6.26k
11.98k (x1.92)
TOTAL
29.29k
36.32k (x1.24)

Multithread

i7-7500U

i7-9850H
Test#1 (Integers)
7.26k
22.68k (x3.12)
Test#2 (FP)
35.04k
83.77k (x2.39)
Test#3 (Generic, ZIP)
11.28k
30.37k (x2.69)
Test#1 (Memory)
5.69k
8.55k (x1.5)
TOTAL
59.27k
145.37k (x2.45)

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
i7-7500U
i7-9850H
Test#1 (Integers)
12.93k
14.5k (x1.12)
Test#2 (FP)
18.63k
20.73k (x1.11)
Test#3 (Generic, ZIP)
5.03k
5.31k (x1.06)
Test#1 (Memory)
6.16k
11.09k (x1.8)
TOTAL
42.75k
51.62k (x1.21)

Multithread

i7-7500U

i7-9850H
Test#1 (Integers)
27.13k
77.18k (x2.84)
Test#2 (FP)
43.19k
126.35k (x2.93)
Test#3 (Generic, ZIP)
11.7k
33.63k (x2.87)
Test#1 (Memory)
4.99k
7.87k (x1.58)
TOTAL
87.02k
245.03k (x2.82)

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
i7-7500U
i7-9850H
Test#1 (Integers)
20.74k
19.83k (x0.96)
Test#2 (FP)
18.41k
16.52k (x0.9)
Test#3 (Generic, ZIP)
3.98k
3.87k (x0.97)
Test#1 (Memory)
5.54k
9.02k (x1.63)
TOTAL
48.67k
49.24k (x1.01)

Multithread

i7-7500U

i7-9850H
Test#1 (Integers)
37.34k
130.19k (x3.49)
Test#2 (FP)
35.79k
121.44k (x3.39)
Test#3 (Generic, ZIP)
8.34k
28.05k (x3.37)
Test#1 (Memory)
5.48k
9.62k (x1.76)
TOTAL
86.94k
289.3k (x3.33)

Performance/W
i7-7500U
i7-9850H
Test#1 (Integers)
2489 points/W
2893 points/W
Test#2 (FP)
2386 points/W
2699 points/W
Test#3 (Generic, ZIP)
556 points/W
623 points/W
Test#1 (Memory)
365 points/W
214 points/W
TOTAL
5796 points/W
6429 points/W

Performance/GHz
i7-7500U
i7-9850H
Test#1 (Integers)
5926 points/GHz
4311 points/GHz
Test#2 (FP)
5260 points/GHz
3591 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
841 points/GHz
Test#1 (Memory)
1584 points/GHz
1961 points/GHz
TOTAL
13907 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