Xeon W3520 vs E5645
Description
The W3520 is based on Nehalem architecture while the E5645 is based on Westmere.
Using the multithread performance as a reference, the W3520 gets a score of 73.2 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.1 times faster than the W3520 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the W3520 gets a score of 73.2 k points while the E5645 gets 77 k points.
Summarizing, the E5645 is 1.1 times faster than the W3520 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
106a5
206c2
Core
Nehalem-WS
Westmere-EP
Base frecuency
2.667 GHz
2.4 GHz
Boost frecuency
2.933 GHz
2.8 GHz
Socket
LGA 1366
LGA 1366
Cores/Threads
4 /8
6 /6
TDP
130 W
80 W
Cache L1 (d+i)
4x32+x4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
12288 kB
Date
March 2009
March 2010
Mean monothread perf.
17.96k points
15.64k points
Mean multithread perf.
73.16k points
76.96k 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
E5645
Test#1 (Integers)
7.35k
6.47k (x0.88)
Test#2 (FP)
4.89k
4.4k (x0.9)
Test#3 (Generic, ZIP)
2.9k
2.43k (x0.84)
Test#1 (Memory)
2.82k
2.33k (x0.83)
TOTAL
17.96k
15.64k (x0.87)
Multithread
W3520
E5645
Test#1 (Integers)
29.69k
34.43k (x1.16)
Test#2 (FP)
22.26k
24.23k (x1.09)
Test#3 (Generic, ZIP)
14.91k
14.48k (x0.97)
Test#1 (Memory)
6.29k
3.81k (x0.61)
TOTAL
73.16k
76.96k (x1.05)
Performance/W
W3520
E5645
Test#1 (Integers)
228 points/W
430 points/W
Test#2 (FP)
171 points/W
303 points/W
Test#3 (Generic, ZIP)
115 points/W
181 points/W
Test#1 (Memory)
48 points/W
48 points/W
TOTAL
563 points/W
962 points/W
Performance/GHz
W3520
E5645
Test#1 (Integers)
2506 points/GHz
2311 points/GHz
Test#2 (FP)
1669 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
989 points/GHz
867 points/GHz
Test#1 (Memory)
960 points/GHz
833 points/GHz
TOTAL
6123 points/GHz
5584 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