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Core i7-9750H vs i7-5820K


Description
The i7-9750H is based on Coffee Lake architecture while the i7-5820K is based on Haswell.

Using the multithread performance as a reference, the i7-9750H gets a score of 258.9 k points while the i7-5820K gets 129.1 k points.

Summarizing, the i7-9750H is 2 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
306f2
Core
Coffee Lake-H
Haswell-E
Architecture
Base frecuency
2.6 GHz
3.3 GHz
Boost frecuency
4.5 GHz
3.6 GHz
Socket
BGA 1440
LGA 1150
Cores/Threads
6/12
6/12
TDP
45 W
140 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
15360 kB
Date
April 2019
September 2014
Mean monothread perf.
62.92k points
31.53k points
Mean multithread perf.
276.46k points
129.06k 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
i7-9750H
i7-5820K
Test#1 (Integers)
4.53k
3.82k (x0.84)
Test#2 (FP)
18.24k
9.64k (x0.53)
Test#3 (Generic, ZIP)
5.76k
4.29k (x0.74)
Test#1 (Memory)
13.01k
3.78k (x0.29)
TOTAL
41.54k
21.53k (x0.52)

Multithread

i7-9750H

i7-5820K
Test#1 (Integers)
24.3k
18.07k (x0.74)
Test#2 (FP)
97.88k
64.25k (x0.66)
Test#3 (Generic, ZIP)
29.85k
27.03k (x0.91)
Test#1 (Memory)
11.93k
8.03k (x0.67)
TOTAL
163.95k
117.38k (x0.72)

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
i7-9750H
i7-5820K
Test#1 (Integers)
16.31k
12.03k (x0.74)
Test#2 (FP)
24.48k
11.23k (x0.46)
Test#3 (Generic, ZIP)
5.87k
4.55k (x0.78)
Test#1 (Memory)
13.02k
3.72k (x0.29)
TOTAL
59.67k
31.53k (x0.53)

Multithread

i7-9750H

i7-5820K
Test#1 (Integers)
87.54k
49.48k (x0.57)
Test#2 (FP)
131.05k
52.21k (x0.4)
Test#3 (Generic, ZIP)
28.47k
19.7k (x0.69)
Test#1 (Memory)
11.8k
7.67k (x0.65)
TOTAL
258.87k
129.06k (x0.5)

Performance/W
i7-9750H
i7-5820K
Test#1 (Integers)
1945 points/W
353 points/W
Test#2 (FP)
2912 points/W
373 points/W
Test#3 (Generic, ZIP)
633 points/W
141 points/W
Test#1 (Memory)
262 points/W
55 points/W
TOTAL
5753 points/W
922 points/W

Performance/GHz
i7-9750H
i7-5820K
Test#1 (Integers)
3624 points/GHz
3343 points/GHz
Test#2 (FP)
5439 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1304 points/GHz
1264 points/GHz
Test#1 (Memory)
2894 points/GHz
1033 points/GHz
TOTAL
13261 points/GHz
8759 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