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Core i3-6100 vs Xeon E3-1225


Description
The i3-6100 is based on Skylake architecture while the E3-1225 is based on Sandy Bridge.

Using the multithread performance as a reference, the i3-6100 gets a score of 91.1 k points while the E3-1225 gets 69 k points.

Summarizing, the i3-6100 is 1.3 times faster than the E3-1225. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
206a7
Core
Skylake-S
Sandy Bridge
Architecture
Base frecuency
3.7 GHz
3.1 GHz
Boost frecuency
3.7 GHz
3.4 GHz
Socket
LGA 1151
LGA 1155
Cores/Threads
2/2
4/4
TDP
51 W
95 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
4096 kB
6144 kB
Date
September 2015
April 2011
Mean monothread perf.
52.84k points
23.94k points
Mean multithread perf.
112.28k points
68.97k 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
i3-6100
E3-1225
Test#1 (Integers)
3.81k
2.63k (x0.69)
Test#2 (FP)
15.65k
7.2k (x0.46)
Test#3 (Generic, ZIP)
5.14k
3.71k (x0.72)
Test#1 (Memory)
4.28k
2.55k (x0.6)
TOTAL
28.89k
16.08k (x0.56)

Multithread

i3-6100

E3-1225
Test#1 (Integers)
7.75k
8.23k (x1.06)
Test#2 (FP)
37.33k
22.82k (x0.61)
Test#3 (Generic, ZIP)
12.13k
11.68k (x0.96)
Test#1 (Memory)
3.56k
2.12k (x0.59)
TOTAL
60.77k
44.85k (x0.74)

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
i3-6100
E3-1225
Test#1 (Integers)
13.76k
9.65k (x0.7)
Test#2 (FP)
19.96k
7.76k (x0.39)
Test#3 (Generic, ZIP)
5.44k
3.95k (x0.73)
Test#1 (Memory)
4.4k
2.57k (x0.59)
TOTAL
43.55k
23.94k (x0.55)

Multithread

i3-6100

E3-1225
Test#1 (Integers)
28.99k
30.52k (x1.05)
Test#2 (FP)
45.75k
24.1k (x0.53)
Test#3 (Generic, ZIP)
12.72k
12.01k (x0.94)
Test#1 (Memory)
3.68k
2.34k (x0.64)
TOTAL
91.14k
68.97k (x0.76)

Performance/W
i3-6100
E3-1225
Test#1 (Integers)
568 points/W
321 points/W
Test#2 (FP)
897 points/W
254 points/W
Test#3 (Generic, ZIP)
249 points/W
126 points/W
Test#1 (Memory)
72 points/W
25 points/W
TOTAL
1787 points/W
726 points/W

Performance/GHz
i3-6100
E3-1225
Test#1 (Integers)
3719 points/GHz
2839 points/GHz
Test#2 (FP)
5393 points/GHz
2283 points/GHz
Test#3 (Generic, ZIP)
1469 points/GHz
1162 points/GHz
Test#1 (Memory)
1189 points/GHz
757 points/GHz
TOTAL
11770 points/GHz
7041 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