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Xeon E5645 vs Celeron N5100


Description
The E5645 is based on Westmere architecture while the N5100 is based on Tremont.

Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the N5100 gets 89.8 k points.

Summarizing, the N5100 is 1.2 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206c2
906c0
Core
Westmere-EP
Jasper Lake
Architecture
Base frecuency
2.4 GHz
1.1 GHz
Boost frecuency
2.8 GHz
2.8 GHz
Socket
LGA 1366
BGA 1338
Cores/Threads
6 /6
4/4
TDP
80 W
6 W
Cache L1 (d+i)
64 kB
4x32+4x32 kB
Cache L2
256 kB
1536 kB
Cache L3
12288 kB
4096 kB
Date
March 2010
February 2021
Mean monothread perf.
15.64k points
26.98k points
Mean multithread perf.
76.96k points
89.82k 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
E5645
N5100
Test#1 (Integers)
6.47k
9.74k (x1.51)
Test#2 (FP)
4.4k
9.84k (x2.23)
Test#3 (Generic, ZIP)
2.43k
3.89k (x1.6)
Test#1 (Memory)
2.33k
3.51k (x1.51)
TOTAL
15.64k
26.98k (x1.73)

Multithread

E5645

N5100
Test#1 (Integers)
34.43k
34.19k (x0.99)
Test#2 (FP)
24.23k
36.28k (x1.5)
Test#3 (Generic, ZIP)
14.48k
15.3k (x1.06)
Test#1 (Memory)
3.81k
4.05k (x1.06)
TOTAL
76.96k
89.82k (x1.17)

Performance/W
E5645
N5100
Test#1 (Integers)
430 points/W
5699 points/W
Test#2 (FP)
303 points/W
6047 points/W
Test#3 (Generic, ZIP)
181 points/W
2550 points/W
Test#1 (Memory)
48 points/W
674 points/W
TOTAL
962 points/W
14970 points/W

Performance/GHz
E5645
N5100
Test#1 (Integers)
2311 points/GHz
3479 points/GHz
Test#2 (FP)
1573 points/GHz
3514 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
1389 points/GHz
Test#1 (Memory)
833 points/GHz
1255 points/GHz
TOTAL
5584 points/GHz
9637 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