Xeon E5645 vs E5506
Description
The E5645 is based on Westmere architecture while the E5506 is based on Nehalem.
Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the E5506 gets 90.4 k points.
Summarizing, the E5506 is 1.2 times faster than the E5645 . 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 E5506 gets 90.4 k points.
Summarizing, the E5506 is 1.2 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206c2
106a5
Core
Westmere-EP
Gainestown
Base frecuency
2.4 GHz
2.133 GHz
Boost frecuency
2.8 GHz
2.133 GHz
Socket
LGA 1366
LGA 1366
Cores/Threads
6 /6
4 /4
TDP
80 W
80 W
Cache L1 (d+i)
64 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
12288 kB
4096 kB
Date
March 2010
March 2009
Mean monothread perf.
15.64k points
9.97k points
Mean multithread perf.
76.96k points
90.45k 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
E5645
E5506
Test#1 (Integers)
1.78k
1.21k (x0.68)
Test#2 (FP)
3.91k
2.75k (x0.7)
Test#3 (Generic, ZIP)
2.52k
1.94k (x0.77)
Test#1 (Memory)
2.42k
0.78k (x0.32)
TOTAL
10.64k
6.68k (x0.63)
Multithread
E5645
E5506
Test#1 (Integers)
9.67k
12.25k (x1.27)
Test#2 (FP)
22.92k
25.55k (x1.11)
Test#3 (Generic, ZIP)
14.31k
17.1k (x1.19)
Test#1 (Memory)
3.81k
5.01k (x1.31)
TOTAL
50.7k
59.9k (x1.18)
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
E5506
Test#1 (Integers)
6.47k
4.48k (x0.69)
Test#2 (FP)
4.4k
2.99k (x0.68)
Test#3 (Generic, ZIP)
2.43k
1.81k (x0.74)
Test#1 (Memory)
2.33k
0.69k (x0.3)
TOTAL
15.64k
9.97k (x0.64)
Multithread
E5645
E5506
Test#1 (Integers)
34.43k
41k (x1.19)
Test#2 (FP)
24.23k
28.17k (x1.16)
Test#3 (Generic, ZIP)
14.48k
17.4k (x1.2)
Test#1 (Memory)
3.81k
3.88k (x1.02)
TOTAL
76.96k
90.45k (x1.18)
Performance/W
E5645
E5506
Test#1 (Integers)
430 points/W
513 points/W
Test#2 (FP)
303 points/W
352 points/W
Test#3 (Generic, ZIP)
181 points/W
217 points/W
Test#1 (Memory)
48 points/W
48 points/W
TOTAL
962 points/W
1131 points/W
Performance/GHz
E5645
E5506
Test#1 (Integers)
2311 points/GHz
2099 points/GHz
Test#2 (FP)
1573 points/GHz
1404 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
847 points/GHz
Test#1 (Memory)
833 points/GHz
325 points/GHz
TOTAL
5584 points/GHz
4675 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