Xeon E5645 vs W3520
Description
The E5645 is based on Westmere architecture while the W3520 is based on Nehalem.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the W3520 gets 73.2 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 E5645 gets a score of 77 k points while the W3520 gets 73.2 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
206c2
106a5
Core
Westmere-EP
Nehalem-WS
Base frecuency
2.4 GHz
2.667 GHz
Boost frecuency
2.8 GHz
2.933 GHz
Socket
LGA 1366
LGA 1366
Cores/Threads
6 /6
4 /8
TDP
80 W
130 W
Cache L1 (d+i)
64 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
12288 kB
8192 kB
Date
March 2010
March 2009
Mean monothread perf.
15.64k points
17.96k points
Mean multithread perf.
76.96k 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
E5645
W3520
Test#1 (Integers)
6.47k
7.35k (x1.14)
Test#2 (FP)
4.4k
4.89k (x1.11)
Test#3 (Generic, ZIP)
2.43k
2.9k (x1.19)
Test#1 (Memory)
2.33k
2.82k (x1.21)
TOTAL
15.64k
17.96k (x1.15)
Multithread
E5645
W3520
Test#1 (Integers)
34.43k
29.69k (x0.86)
Test#2 (FP)
24.23k
22.26k (x0.92)
Test#3 (Generic, ZIP)
14.48k
14.91k (x1.03)
Test#1 (Memory)
3.81k
6.29k (x1.65)
TOTAL
76.96k
73.16k (x0.95)
Performance/W
E5645
W3520
Test#1 (Integers)
430 points/W
228 points/W
Test#2 (FP)
303 points/W
171 points/W
Test#3 (Generic, ZIP)
181 points/W
115 points/W
Test#1 (Memory)
48 points/W
48 points/W
TOTAL
962 points/W
563 points/W
Performance/GHz
E5645
W3520
Test#1 (Integers)
2311 points/GHz
2506 points/GHz
Test#2 (FP)
1573 points/GHz
1669 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
989 points/GHz
Test#1 (Memory)
833 points/GHz
960 points/GHz
TOTAL
5584 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.
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