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Core 2 Duo E8400 vs Xeon W3520


Description
The E8400 is based on Core architecture while the W3520 is based on Nehalem.

Using the multithread performance as a reference, the E8400 gets a score of 27.1 k points while the W3520 gets 73.2 k points.

Summarizing, the W3520 is 2.7 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
106a5
Core
Wolfdale
Nehalem-WS
Architecture
Base frecuency
3 GHz
2.667 GHz
Boost frecuency
3 GHz
2.933 GHz
Socket
LGA 775
LGA 1366
Cores/Threads
2/2
4 /8
TDP
65 W
130 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+x4x32 kB
Cache L2
6144 kB
4x256 kB
Cache L3
0 kB
8192 kB
Date
January 2008
March 2009
Mean monothread perf.
17.28k points
17.96k points
Mean multithread perf.
27.11k points
73.16k 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
E8400
W3520
Test#1 (Integers)
3.3k
7.35k (x2.23)
Test#2 (FP)
7.28k
4.89k (x0.67)
Test#3 (Generic, ZIP)
2.88k
2.9k (x1.01)
Test#1 (Memory)
3.83k
2.82k (x0.73)
TOTAL
17.28k
17.96k (x1.04)

Multithread

E8400

W3520
Test#1 (Integers)
6.3k
29.69k (x4.71)
Test#2 (FP)
13.71k
22.26k (x1.62)
Test#3 (Generic, ZIP)
5.32k
14.91k (x2.8)
Test#1 (Memory)
1.78k
6.29k (x3.54)
TOTAL
27.11k
73.16k (x2.7)

Performance/W
E8400
W3520
Test#1 (Integers)
97 points/W
228 points/W
Test#2 (FP)
211 points/W
171 points/W
Test#3 (Generic, ZIP)
82 points/W
115 points/W
Test#1 (Memory)
27 points/W
48 points/W
TOTAL
417 points/W
563 points/W

Performance/GHz
E8400
W3520
Test#1 (Integers)
1099 points/GHz
2506 points/GHz
Test#2 (FP)
2426 points/GHz
1669 points/GHz
Test#3 (Generic, ZIP)
959 points/GHz
989 points/GHz
Test#1 (Memory)
1278 points/GHz
960 points/GHz
TOTAL
5762 points/GHz
6123 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