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Core i5-7300U vs i5-7400T


Description
Both models i5-7300U and i5-7400T are based on Kaby Lake architecture.

The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.

Using the multithread performance as a reference, the i5-7300U gets a score of 109.1 k points while the i5-7400T gets 163.4 k points.

Summarizing, the i5-7400T is 1.5 times faster than the i5-7300U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
906e9
Core
Kaby Lake-U
Kaby Lake-S
Architecture
Base frecuency
2.6 GHz
2.4 GHz
Boost frecuency
3.5 GHz
3 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
2/4
4/4
TDP
15 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
January 2017
January 2017
Mean monothread perf.
48.25k points
49.16k points
Mean multithread perf.
109.1k points
163.4k points

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
i5-7300U
i5-7400T
Test#1 (Integers)
20.18k
19.7k (x0.98)
Test#2 (FP)
18.57k
17.29k (x0.93)
Test#3 (Generic, ZIP)
4.24k
4.07k (x0.96)
Test#1 (Memory)
5.25k
8.1k (x1.54)
TOTAL
48.25k
49.16k (x1.02)

Multithread

i5-7300U

i5-7400T
Test#1 (Integers)
47.75k
75.27k (x1.58)
Test#2 (FP)
44.82k
66.24k (x1.48)
Test#3 (Generic, ZIP)
10.82k
13.93k (x1.29)
Test#1 (Memory)
5.7k
7.95k (x1.4)
TOTAL
109.1k
163.4k (x1.5)

Performance/W
i5-7300U
i5-7400T
Test#1 (Integers)
3184 points/W
2151 points/W
Test#2 (FP)
2988 points/W
1893 points/W
Test#3 (Generic, ZIP)
721 points/W
398 points/W
Test#1 (Memory)
380 points/W
227 points/W
TOTAL
7273 points/W
4669 points/W

Performance/GHz
i5-7300U
i5-7400T
Test#1 (Integers)
5766 points/GHz
6568 points/GHz
Test#2 (FP)
5306 points/GHz
5764 points/GHz
Test#3 (Generic, ZIP)
1213 points/GHz
1356 points/GHz
Test#1 (Memory)
1501 points/GHz
2700 points/GHz
TOTAL
13785 points/GHz
16388 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