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Xeon W3520 vs Core i7-6600U


Description
The W3520 is based on Nehalem architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the W3520 gets a score of 73.2 k points while the i7-6600U gets 48.2 k points.

Summarizing, the W3520 is 1.5 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
406e3
Core
Nehalem-WS
Skylake-U
Architecture
Base frecuency
2.667 GHz
2.6 GHz
Boost frecuency
2.933 GHz
3.4 GHz
Socket
LGA 1366
BGA1356
Cores/Threads
4 /8
2/4
TDP
130 W
15 W
Cache L1 (d+i)
4x32+x4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
March 2009
September 2015
Mean monothread perf.
17.96k points
39.73k points
Mean multithread perf.
73.16k points
79.22k 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
W3520
i7-6600U
Test#1 (Integers)
7.35k
6.76k (x0.92)
Test#2 (FP)
4.89k
9.58k (x1.96)
Test#3 (Generic, ZIP)
2.9k
2.46k (x0.85)
Test#1 (Memory)
2.82k
4.18k (x1.48)
TOTAL
17.96k
22.99k (x1.28)

Multithread

W3520

i7-6600U
Test#1 (Integers)
29.69k
14.37k (x0.48)
Test#2 (FP)
22.26k
23.79k (x1.07)
Test#3 (Generic, ZIP)
14.91k
5.71k (x0.38)
Test#1 (Memory)
6.29k
4.29k (x0.68)
TOTAL
73.16k
48.16k (x0.66)

Performance/W
W3520
i7-6600U
Test#1 (Integers)
228 points/W
958 points/W
Test#2 (FP)
171 points/W
1586 points/W
Test#3 (Generic, ZIP)
115 points/W
380 points/W
Test#1 (Memory)
48 points/W
286 points/W
TOTAL
563 points/W
3211 points/W

Performance/GHz
W3520
i7-6600U
Test#1 (Integers)
2506 points/GHz
1989 points/GHz
Test#2 (FP)
1669 points/GHz
2818 points/GHz
Test#3 (Generic, ZIP)
989 points/GHz
724 points/GHz
Test#1 (Memory)
960 points/GHz
1229 points/GHz
TOTAL
6123 points/GHz
6761 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