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Celeron 3855U vs Core 2 Quad Q9550


Description
The 3855U is based on Skylake architecture while the Q9550 is based on Core.

Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the Q9550 gets 49 k points.

Summarizing, the Q9550 is 2 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
1067a
Core
Skylake-U
Yorkfield
Architecture
Base frecuency
1.6 GHz
2.833 GHz
Socket
BGA1356
LGA 775
Cores/Threads
2/2
4/4
TDP
15 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
128+128 kB
Cache L2
2x256 kB
12288 kB
Cache L3
2096 kB
0 kB
Date
December 2015
March 2008
Mean monothread perf.
19.24k points
17.29k points
Mean multithread perf.
24.56k points
48.98k 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
Q9550
Test#1 (Integers)
1.64k
2.6k (x1.58)
Test#2 (FP)
6.72k
6.67k (x0.99)
Test#3 (Generic, ZIP)
2.06k
2.72k (x1.32)
Test#1 (Memory)
2.4k
4.43k (x1.84)
TOTAL
12.83k
16.42k (x1.28)

Multithread

3855U

Q9550
Test#1 (Integers)
2.2k
9.92k (x4.52)
Test#2 (FP)
9.59k
25.37k (x2.65)
Test#3 (Generic, ZIP)
2.76k
10.31k (x3.74)
Test#1 (Memory)
2.27k
3.37k (x1.48)
TOTAL
16.81k
48.96k (x2.91)

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
Q9550
Test#1 (Integers)
5.93k
3.28k (x0.55)
Test#2 (FP)
8.53k
7.28k (x0.85)
Test#3 (Generic, ZIP)
2.28k
2.83k (x1.24)
Test#1 (Memory)
2.5k
3.9k (x1.56)
TOTAL
19.24k
17.29k (x0.9)

Multithread

3855U

Q9550
Test#1 (Integers)
7.87k
11.72k (x1.49)
Test#2 (FP)
11.28k
24.91k (x2.21)
Test#3 (Generic, ZIP)
2.91k
9.77k (x3.36)
Test#1 (Memory)
2.5k
2.57k (x1.03)
TOTAL
24.56k
48.98k (x1.99)

Performance/W
3855U
Q9550
Test#1 (Integers)
524 points/W
123 points/W
Test#2 (FP)
752 points/W
262 points/W
Test#3 (Generic, ZIP)
194 points/W
103 points/W
Test#1 (Memory)
166 points/W
27 points/W
TOTAL
1637 points/W
516 points/W

Performance/GHz
3855U
Q9550
Test#1 (Integers)
3706 points/GHz
1159 points/GHz
Test#2 (FP)
5333 points/GHz
2568 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
1001 points/GHz
Test#1 (Memory)
1562 points/GHz
1375 points/GHz
TOTAL
12024 points/GHz
6103 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