| | | | | | |

Xeon X5670 vs Celeron 3855U


Description
The X5670 is based on Westmere architecture while the 3855U is based on Skylake.

Using the multithread performance as a reference, the X5670 gets a score of 115.4 k points while the 3855U gets 24.6 k points.

Summarizing, the X5670 is 4.7 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206c2
406e3
Core
Westmere-EP
Skylake-U
Architecture
Base frecuency
2.933 GHz
1.6 GHz
Boost frecuency
3.333 GHz
1.6 GHz
Socket
LGA 1366
BGA1356
Cores/Threads
6 /6
2/2
TDP
95 W
15 W
Cache L1 (d+i)
64 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
12288 kB
2096 kB
Date
March 2010
December 2015
Mean monothread perf.
20.26k points
19.24k points
Mean multithread perf.
115.4k points
24.56k 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
X5670
3855U
Test#1 (Integers)
8.35k
5.93k (x0.71)
Test#2 (FP)
5.58k
8.53k (x1.53)
Test#3 (Generic, ZIP)
3.32k
2.28k (x0.68)
Test#1 (Memory)
3k
2.5k (x0.83)
TOTAL
20.26k
19.24k (x0.95)

Multithread

X5670

3855U
Test#1 (Integers)
49.72k
7.87k (x0.16)
Test#2 (FP)
35.19k
11.28k (x0.32)
Test#3 (Generic, ZIP)
21.88k
2.91k (x0.13)
Test#1 (Memory)
8.6k
2.5k (x0.29)
TOTAL
115.4k
24.56k (x0.21)

Performance/W
X5670
3855U
Test#1 (Integers)
523 points/W
524 points/W
Test#2 (FP)
370 points/W
752 points/W
Test#3 (Generic, ZIP)
230 points/W
194 points/W
Test#1 (Memory)
91 points/W
166 points/W
TOTAL
1215 points/W
1637 points/W

Performance/GHz
X5670
3855U
Test#1 (Integers)
2506 points/GHz
3706 points/GHz
Test#2 (FP)
1675 points/GHz
5333 points/GHz
Test#3 (Generic, ZIP)
997 points/GHz
1423 points/GHz
Test#1 (Memory)
900 points/GHz
1562 points/GHz
TOTAL
6078 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