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Core i7-4790K vs i5-8265U


Description
The i7-4790K is based on Haswell architecture while the i5-8265U is based on Whiskey Lake.

Using the multithread performance as a reference, the i7-4790K gets a score of 215.5 k points while the i5-8265U gets 143.2 k points.

Summarizing, the i7-4790K is 1.5 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
806ec
Core
Haswell
Whiskey Lake-U
Architecture
Base frecuency
4 GHz
1.6 GHz
Boost frecuency
4.4 GHz
3.9 GHz
Socket
LGA 1150
BGA1528
Cores/Threads
4/8
4/8
TDP
88 W
15 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
May 2014
August 2018
Mean monothread perf.
52.47k points
46.67k points
Mean multithread perf.
215.47k points
143.23k 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
i7-4790K
i5-8265U
Test#1 (Integers)
5.06k
3.68k (x0.73)
Test#2 (FP)
12.63k
16.08k (x1.27)
Test#3 (Generic, ZIP)
5.81k
4.99k (x0.86)
Test#1 (Memory)
4.96k
7.95k (x1.6)
TOTAL
28.47k
32.69k (x1.15)

Multithread

i7-4790K

i5-8265U
Test#1 (Integers)
18.28k
14.29k (x0.78)
Test#2 (FP)
64.07k
61.15k (x0.95)
Test#3 (Generic, ZIP)
27.52k
16.53k (x0.6)
Test#1 (Memory)
7.97k
3.72k (x0.47)
TOTAL
117.84k
95.69k (x0.81)

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
i7-4790K
i5-8265U
Test#1 (Integers)
15.6k
13.6k (x0.87)
Test#2 (FP)
13.92k
20.03k (x1.44)
Test#3 (Generic, ZIP)
6.12k
5.19k (x0.85)
Test#1 (Memory)
5k
7.05k (x1.41)
TOTAL
40.65k
45.87k (x1.13)

Multithread

i7-4790K

i5-8265U
Test#1 (Integers)
65.48k
51.42k (x0.79)
Test#2 (FP)
63.29k
77.48k (x1.22)
Test#3 (Generic, ZIP)
27.93k
16.65k (x0.6)
Test#1 (Memory)
7.84k
3.69k (x0.47)
TOTAL
164.54k
149.24k (x0.91)

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
i7-4790K
i5-8265U
Test#1 (Integers)
15.8k
13.66k (x0.86)
Test#2 (FP)
14.35k
21.17k (x1.48)
Test#3 (Generic, ZIP)
5.97k
5k (x0.84)
Test#1 (Memory)
5.17k
8.11k (x1.57)
TOTAL
41.29k
47.94k (x1.16)

Multithread

i7-4790K

i5-8265U
Test#1 (Integers)
62.79k
51.36k (x0.82)
Test#2 (FP)
66.48k
79.72k (x1.2)
Test#3 (Generic, ZIP)
26.35k
16.61k (x0.63)
Test#1 (Memory)
8.74k
3.75k (x0.43)
TOTAL
164.36k
151.44k (x0.92)

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
i7-4790K
i5-8265U
Test#1 (Integers)
26.16k
19.19k (x0.73)
Test#2 (FP)
14.78k
17.47k (x1.18)
Test#3 (Generic, ZIP)
6.01k
4.04k (x0.67)
Test#1 (Memory)
5.52k
5.97k (x1.08)
TOTAL
52.47k
46.67k (x0.89)

Multithread

i7-4790K

i5-8265U
Test#1 (Integers)
107.76k
64.43k (x0.6)
Test#2 (FP)
70.84k
61.91k (x0.87)
Test#3 (Generic, ZIP)
27.99k
13.36k (x0.48)
Test#1 (Memory)
8.87k
3.52k (x0.4)
TOTAL
215.47k
143.23k (x0.66)

Performance/W
i7-4790K
i5-8265U
Test#1 (Integers)
1225 points/W
4296 points/W
Test#2 (FP)
805 points/W
4128 points/W
Test#3 (Generic, ZIP)
318 points/W
890 points/W
Test#1 (Memory)
101 points/W
235 points/W
TOTAL
2448 points/W
9548 points/W

Performance/GHz
i7-4790K
i5-8265U
Test#1 (Integers)
5946 points/GHz
4920 points/GHz
Test#2 (FP)
3359 points/GHz
4478 points/GHz
Test#3 (Generic, ZIP)
1366 points/GHz
1037 points/GHz
Test#1 (Memory)
1254 points/GHz
1531 points/GHz
TOTAL
11925 points/GHz
11966 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