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Core i5-6400 vs Xeon W3550


Description
The i5-6400 is based on Skylake architecture while the W3550 is based on .

Using the multithread performance as a reference, the i5-6400 gets a score of 129.5 k points while the W3550 gets 73.2 k points.

Summarizing, the i5-6400 is 1.8 times faster than the W3550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
106a5
Core
Skylake-S
Bloomfield
Architecture
Skylake
Base frecuency
2.7 GHz
3.066 GHz
Boost frecuency
3.3 GHz
3.333 GHz
Socket
LGA 1151
LGA 1366
Cores/Threads
4/4
4 /4
TDP
65 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
September 2015
August 2009
Mean monothread perf.
48.05k points
20.24k points
Mean multithread perf.
174.05k points
73.21k 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
i5-6400
W3550
Test#1 (Integers)
3.2k
2.3k (x0.72)
Test#2 (FP)
12.81k
5.21k (x0.41)
Test#3 (Generic, ZIP)
4.18k
3.31k (x0.79)
Test#1 (Memory)
4.3k
3.09k (x0.72)
TOTAL
24.49k
13.92k (x0.57)

Multithread

i5-6400

W3550
Test#1 (Integers)
11.45k
8.75k (x0.76)
Test#2 (FP)
46.67k
19.8k (x0.42)
Test#3 (Generic, ZIP)
14.69k
12.38k (x0.84)
Test#1 (Memory)
5.92k
6.17k (x1.04)
TOTAL
78.73k
47.09k (x0.6)

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
i5-6400
W3550
Test#1 (Integers)
11.56k
8.34k (x0.72)
Test#2 (FP)
16.53k
5.56k (x0.34)
Test#3 (Generic, ZIP)
4.3k
3.26k (x0.76)
Test#1 (Memory)
3.97k
3.08k (x0.78)
TOTAL
36.36k
20.24k (x0.56)

Multithread

i5-6400

W3550
Test#1 (Integers)
43.01k
32.5k (x0.76)
Test#2 (FP)
64.46k
21.59k (x0.33)
Test#3 (Generic, ZIP)
16.14k
12.85k (x0.8)
Test#1 (Memory)
5.91k
6.27k (x1.06)
TOTAL
129.51k
73.21k (x0.57)

Performance/W
i5-6400
W3550
Test#1 (Integers)
662 points/W
250 points/W
Test#2 (FP)
992 points/W
166 points/W
Test#3 (Generic, ZIP)
248 points/W
99 points/W
Test#1 (Memory)
91 points/W
48 points/W
TOTAL
1992 points/W
563 points/W

Performance/GHz
i5-6400
W3550
Test#1 (Integers)
3503 points/GHz
2502 points/GHz
Test#2 (FP)
5009 points/GHz
1669 points/GHz
Test#3 (Generic, ZIP)
1302 points/GHz
978 points/GHz
Test#1 (Memory)
1203 points/GHz
925 points/GHz
TOTAL
11018 points/GHz
6073 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