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Pentium Gold 5405U vs Pentium G645


Description
The 5405U is based on Whiskey Lake architecture while the G645 is based on Sandy Bridge.

Using the multithread performance as a reference, the 5405U gets a score of 48.8 k points while the G645 gets 35.4 k points.

Summarizing, the 5405U is 1.4 times faster than the G645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806eb
206a7
Core
Whiskey Lake-U
Sandy Bridge
Architecture
Base frecuency
2.3 GHz
2.9 GHz
Socket
BGA 1528
LGA 1155
Cores/Threads
2/4
2/2
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
2048 kB
3072 kB
Date
January 2019
September 2012
Mean monothread perf.
21.34k points
22.24k points
Mean multithread perf.
48.83k points
35.38k points

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
5405U
G645
Test#1 (Integers)
7.01k
8.66k (x1.24)
Test#2 (FP)
9.51k
6.9k (x0.73)
Test#3 (Generic, ZIP)
2.31k
3.48k (x1.51)
Test#1 (Memory)
2.52k
3.2k (x1.27)
TOTAL
21.34k
22.24k (x1.04)

Multithread

5405U

G645
Test#1 (Integers)
16.03k
14.06k (x0.88)
Test#2 (FP)
24.11k
11.82k (x0.49)
Test#3 (Generic, ZIP)
5.59k
5.83k (x1.04)
Test#1 (Memory)
3.1k
3.69k (x1.19)
TOTAL
48.83k
35.38k (x0.72)

Performance/W
5405U
G645
Test#1 (Integers)
1069 points/W
216 points/W
Test#2 (FP)
1607 points/W
182 points/W
Test#3 (Generic, ZIP)
372 points/W
90 points/W
Test#1 (Memory)
207 points/W
57 points/W
TOTAL
3255 points/W
544 points/W

Performance/GHz
5405U
G645
Test#1 (Integers)
3046 points/GHz
2987 points/GHz
Test#2 (FP)
4134 points/GHz
2380 points/GHz
Test#3 (Generic, ZIP)
1004 points/GHz
1199 points/GHz
Test#1 (Memory)
1094 points/GHz
1103 points/GHz
TOTAL
9278 points/GHz
7669 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