Celeron 3855U vs Xeon E5-4640
Description
The 3855U is based on Skylake architecture while the E5-4640 is based on Sandy Bridge.
Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the E5-4640 gets 581.6 k points.
Summarizing, the E5-4640 is 23.6 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 3855U gets a score of 24.6 k points while the E5-4640 gets 581.6 k points.
Summarizing, the E5-4640 is 23.6 times faster than the 3855U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
406e3
206d7
Core
Skylake-U
Sandy Bridge-EP
Base frecuency
1.6 GHz
2.4 GHz
Boost frecuency
1.6 GHz
2.8 GHz
Socket
BGA1356
LGA 2011
Cores/Threads
2/2
8 /16
TDP
15 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
8x32+8x32 kB
Cache L2
2x256 kB
8x256 kB
Cache L3
2096 kB
20480 kB
Date
December 2015
May 2012
Mean monothread perf.
19.24k points
13.88k points
Mean multithread perf.
24.56k points
610.16k 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
E5-4640
Test#1 (Integers)
1.64k
1.66k (x1.01)
Test#2 (FP)
6.72k
5.26k (x0.78)
Test#3 (Generic, ZIP)
2.06k
2.13k (x1.03)
Test#1 (Memory)
2.4k
2.53k (x1.05)
TOTAL
12.83k
11.58k (x0.9)
Multithread
3855U
E5-4640
Test#1 (Integers)
2.2k
77.64k (x35.36)
Test#2 (FP)
9.59k
212.2k (x22.14)
Test#3 (Generic, ZIP)
2.76k
113.11k (x41.01)
Test#1 (Memory)
2.27k
7.54k (x3.32)
TOTAL
16.81k
410.48k (x24.42)
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
E5-4640
Test#1 (Integers)
5.93k
6.19k (x1.04)
Test#2 (FP)
8.53k
5.89k (x0.69)
Test#3 (Generic, ZIP)
2.28k
2.11k (x0.93)
Test#1 (Memory)
2.5k
2.51k (x1)
TOTAL
19.24k
16.7k (x0.87)
Multithread
3855U
E5-4640
Test#1 (Integers)
7.87k
244.88k (x31.13)
Test#2 (FP)
11.28k
215.35k (x19.09)
Test#3 (Generic, ZIP)
2.91k
114.64k (x39.4)
Test#1 (Memory)
2.5k
6.76k (x2.71)
TOTAL
24.56k
581.63k (x23.69)
Performance/W
3855U
E5-4640
Test#1 (Integers)
524 points/W
2578 points/W
Test#2 (FP)
752 points/W
2267 points/W
Test#3 (Generic, ZIP)
194 points/W
1207 points/W
Test#1 (Memory)
166 points/W
71 points/W
TOTAL
1637 points/W
6122 points/W
Performance/GHz
3855U
E5-4640
Test#1 (Integers)
3706 points/GHz
2210 points/GHz
Test#2 (FP)
5333 points/GHz
2105 points/GHz
Test#3 (Generic, ZIP)
1423 points/GHz
755 points/GHz
Test#1 (Memory)
1562 points/GHz
895 points/GHz
TOTAL
12024 points/GHz
5966 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4