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Core 2 Duo E4400 vs Celeron 3855U


Description
The E4400 is based on Core architecture while the 3855U is based on Skylake.

Using the multithread performance as a reference, the E4400 gets a score of 14.2 k points while the 3855U gets 24.6 k points.

Summarizing, the 3855U is 1.7 times faster than the E4400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fd
406e3
Core
Allendale
Skylake-U
Architecture
Base frecuency
2 GHz
1.6 GHz
Socket
LGA 775
BGA1356
Cores/Threads
2/2
2/2
TDP
65 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2048 kB
2x256 kB
Cache L3
0 kB
2096 kB
Date
July 2007
December 2015
Mean monothread perf.
7.67k points
19.24k points
Mean multithread perf.
14.17k points
24.56k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
E4400
3855U
Test#1 (Integers)
2.01k
1.64k (x0.82)
Test#2 (FP)
2.01k
6.72k (x3.34)
Test#3 (Generic, ZIP)
2.02k
2.06k (x1.02)
Test#1 (Memory)
1.19k
2.4k (x2.02)
TOTAL
7.24k
12.83k (x1.77)

Multithread

E4400

3855U
Test#1 (Integers)
4k
2.2k (x0.55)
Test#2 (FP)
4.02k
9.59k (x2.38)
Test#3 (Generic, ZIP)
4.04k
2.76k (x0.68)
Test#1 (Memory)
1.2k
2.27k (x1.89)
TOTAL
13.26k
16.81k (x1.27)

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
E4400
3855U
Test#1 (Integers)
2.3k
5.93k (x2.58)
Test#2 (FP)
2.09k
8.53k (x4.09)
Test#3 (Generic, ZIP)
2.1k
2.28k (x1.09)
Test#1 (Memory)
1.18k
2.5k (x2.12)
TOTAL
7.67k
19.24k (x2.51)

Multithread

E4400

3855U
Test#1 (Integers)
4.61k
7.87k (x1.71)
Test#2 (FP)
4.17k
11.28k (x2.71)
Test#3 (Generic, ZIP)
4.2k
2.91k (x0.69)
Test#1 (Memory)
1.2k
2.5k (x2.09)
TOTAL
14.17k
24.56k (x1.73)

Performance/W
E4400
3855U
Test#1 (Integers)
71 points/W
524 points/W
Test#2 (FP)
64 points/W
752 points/W
Test#3 (Generic, ZIP)
65 points/W
194 points/W
Test#1 (Memory)
18 points/W
166 points/W
TOTAL
218 points/W
1637 points/W

Performance/GHz
E4400
3855U
Test#1 (Integers)
1151 points/GHz
3706 points/GHz
Test#2 (FP)
1044 points/GHz
5333 points/GHz
Test#3 (Generic, ZIP)
1048 points/GHz
1423 points/GHz
Test#1 (Memory)
591 points/GHz
1562 points/GHz
TOTAL
3834 points/GHz
12024 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