Xeon E5645 vs Core i5-2400
Description
The E5645 is based on Westmere architecture while the i5-2400 is based on Sandy Bridge.
Using the multithread performance as a reference, the E5645 gets a score of 50.7 k points while the i5-2400 gets 58.9 k points.
Summarizing, the i5-2400 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 50.7 k points while the i5-2400 gets 58.9 k points.
Summarizing, the i5-2400 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
206a7
Core
Westmere-EP
Sandy Bridge
Base frecuency
2.4 GHz
3.1 GHz
Boost frecuency
2.8 GHz
3.4 GHz
Socket
LGA 1366
LGA 1155
Cores/Threads
6 /6
4/4
TDP
80 W
95 W
Cache L1 (d+i)
64 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
March 2010
January 2011
Mean monothread perf.
15.64k points
25.49k points
Mean multithread perf.
76.96k points
84.36k 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
i5-2400
Test#1 (Integers)
1.78k
2.72k (x1.53)
Test#2 (FP)
3.91k
7.6k (x1.94)
Test#3 (Generic, ZIP)
2.52k
3.98k (x1.58)
Test#1 (Memory)
2.42k
4.47k (x1.85)
TOTAL
10.64k
18.78k (x1.77)
Multithread
E5645
i5-2400
Test#1 (Integers)
9.67k
10.37k (x1.07)
Test#2 (FP)
22.92k
28.84k (x1.26)
Test#3 (Generic, ZIP)
14.31k
15.08k (x1.05)
Test#1 (Memory)
3.81k
4.67k (x1.23)
TOTAL
50.7k
58.95k (x1.16)
Performance/W
E5645
i5-2400
Test#1 (Integers)
121 points/W
109 points/W
Test#2 (FP)
286 points/W
304 points/W
Test#3 (Generic, ZIP)
179 points/W
159 points/W
Test#1 (Memory)
48 points/W
49 points/W
TOTAL
634 points/W
620 points/W
Performance/GHz
E5645
i5-2400
Test#1 (Integers)
635 points/GHz
801 points/GHz
Test#2 (FP)
1397 points/GHz
2236 points/GHz
Test#3 (Generic, ZIP)
901 points/GHz
1171 points/GHz
Test#1 (Memory)
865 points/GHz
1316 points/GHz
TOTAL
3798 points/GHz
5523 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