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Core i7-4500U vs A6 7400K


Description
The i7-4500U is based on Haswell architecture while the 7400K is based on Steamroller.

Using the multithread performance as a reference, the i7-4500U gets a score of 53.4 k points while the 7400K gets 34.3 k points.

Summarizing, the i7-4500U is 1.6 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40651
630f01
Core
Haswell
Kaveri
Architecture
Base frecuency
1.8 GHz
3.5 GHz
Boost frecuency
3 GHz
3.9 GHz
Socket
BGA1168
Socket FM2+
Cores/Threads
2 /2
2/2
TDP
15 W
65 W
Cache L1 (d+i)
32+32 kB
2x16+64 kB
Cache L2
256 kB
1024 kB
Cache L3
4096 kB
0 kB
Date
June 2013
July 2014
Mean monothread perf.
33.02k points
24.01k points
Mean multithread perf.
66.14k points
34.28k points

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
i7-4500U
7400K
Test#1 (Integers)
10.41k
8.78k (x0.84)
Test#2 (FP)
8.97k
9.45k (x1.05)
Test#3 (Generic, ZIP)
3.82k
3.39k (x0.89)
Test#1 (Memory)
3.39k
2.39k (x0.7)
TOTAL
26.59k
24.01k (x0.9)

Multithread

i7-4500U

7400K
Test#1 (Integers)
19.91k
13.5k (x0.68)
Test#2 (FP)
21.47k
12.17k (x0.57)
Test#3 (Generic, ZIP)
8.53k
5.96k (x0.7)
Test#1 (Memory)
3.53k
2.65k (x0.75)
TOTAL
53.44k
34.28k (x0.64)

Performance/W
i7-4500U
7400K
Test#1 (Integers)
1327 points/W
208 points/W
Test#2 (FP)
1431 points/W
187 points/W
Test#3 (Generic, ZIP)
569 points/W
92 points/W
Test#1 (Memory)
235 points/W
41 points/W
TOTAL
3563 points/W
527 points/W

Performance/GHz
i7-4500U
7400K
Test#1 (Integers)
3471 points/GHz
2252 points/GHz
Test#2 (FP)
2990 points/GHz
2423 points/GHz
Test#3 (Generic, ZIP)
1274 points/GHz
869 points/GHz
Test#1 (Memory)
1128 points/GHz
612 points/GHz
TOTAL
8863 points/GHz
6156 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