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Celeron 3855U vs Core Duo T2450


Description
The 3855U is based on Skylake architecture while the T2450 is based on Mobile.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the T2450 gets 11.4 k points.

Summarizing, the 3855U is 2.2 times faster than the T2450. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
6ec
Core
Skylake-U
Yonah
Architecture
Skylake
Base frecuency
1.6 GHz
2 GHz
Socket
BGA1356
micro FC-PGA 478-pin
Cores/Threads
2/2
2/2
TDP
15 W
W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2048 kB
Cache L3
2096 kB
kB
Date
December 2015
Mean monothread perf.
19.24k points
6.49k points
Mean multithread perf.
24.56k points
11.37k 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
3855U
T2450
Test#1 (Integers)
1.64k
1.04k (x0.63)
Test#2 (FP)
6.72k
1.85k (x0.28)
Test#3 (Generic, ZIP)
2.06k
1.76k (x0.85)
Test#1 (Memory)
2.4k
0.97k (x0.4)
TOTAL
12.83k
5.62k (x0.44)

Multithread

3855U

T2450
Test#1 (Integers)
2.2k
1.78k (x0.81)
Test#2 (FP)
9.59k
3.51k (x0.37)
Test#3 (Generic, ZIP)
2.76k
3.05k (x1.11)
Test#1 (Memory)
2.27k
0.94k (x0.41)
TOTAL
16.81k
9.28k (x0.55)

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
3855U
T2450
Test#1 (Integers)
5.93k
1.81k (x0.31)
Test#2 (FP)
8.53k
1.96k (x0.23)
Test#3 (Generic, ZIP)
2.28k
1.81k (x0.79)
Test#1 (Memory)
2.5k
0.9k (x0.36)
TOTAL
19.24k
6.49k (x0.34)

Multithread

3855U

T2450
Test#1 (Integers)
7.87k
3.41k (x0.43)
Test#2 (FP)
11.28k
3.89k (x0.34)
Test#3 (Generic, ZIP)
2.91k
3.1k (x1.07)
Test#1 (Memory)
2.5k
0.97k (x0.39)
TOTAL
24.56k
11.37k (x0.46)

Performance/W
3855U
T2450
Test#1 (Integers)
524 points/W