| | | | | | |

Pentium G645 vs Pentium Gold 5405U


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

Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the 5405U gets 48.8 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
206a7
806eb
Core
Sandy Bridge
Whiskey Lake-U
Architecture
Base frecuency
2.9 GHz
2.3 GHz
Socket
LGA 1155
BGA 1528
Cores/Threads
2/2
2/4
TDP
65 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
2048 kB
Date
September 2012
January 2019
Mean monothread perf.
22.24k points
21.34k points
Mean multithread perf.
35.38k points
48.83k 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
G645
5405U
Test#1 (Integers)
8.66k
7.01k (x0.81)
Test#2 (FP)
6.9k
9.51k (x1.38)
Test#3 (Generic, ZIP)
3.48k
2.31k (x0.66)
Test#1 (Memory)
3.2k
2.52k (x0.79)
TOTAL
22.24k
21.34k (x0.96)

Multithread

G645

5405U
Test#1 (Integers)
14.06k
16.03k (x1.14)
Test#2 (FP)
11.82k
24.11k (x2.04)
Test#3 (Generic, ZIP)
5.83k
5.59k (x0.96)
Test#1 (Memory)
3.69k
3.1k (x0.84)
TOTAL
35.38k
48.83k (x1.38)

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

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