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Core i5-2300 vs Xeon E5645


Description
The i5-2300 is based on Sandy Bridge architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i5-2300 gets a score of 52.9 k points while the E5645 gets 50.7 k points.

Summarizing, the i5-2300 is 1 times faster than the E5645 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
206c2
Core
Sandy Bridge
Westmere-EP
Architecture
Base frecuency
2.8 GHz
2.4 GHz
Boost frecuency
3.1 GHz
2.8 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
4/4
6 /6
TDP
95 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
12288 kB
Date
May 2011
March 2010
Mean monothread perf.
24.53k points
15.64k points
Mean multithread perf.
79.46k points
76.96k 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
i5-2300
E5645
Test#1 (Integers)
2.52k
1.78k (x0.71)
Test#2 (FP)
7.01k
3.91k (x0.56)
Test#3 (Generic, ZIP)
3.77k
2.52k (x0.67)
Test#1 (Memory)
4.22k
2.42k (x0.57)
TOTAL
17.53k
10.64k (x0.61)

Multithread

i5-2300

E5645
Test#1 (Integers)
9.46k
9.67k (x1.02)
Test#2 (FP)
26.25k
22.92k (x0.87)
Test#3 (Generic, ZIP)
14.1k
14.31k (x1.02)
Test#1 (Memory)
3.13k
3.81k (x1.22)
TOTAL
52.93k
50.7k (x0.96)

Performance/W
i5-2300
E5645
Test#1 (Integers)
100 points/W
121 points/W
Test#2 (FP)
276 points/W
286 points/W
Test#3 (Generic, ZIP)
148 points/W
179 points/W
Test#1 (Memory)
33 points/W
48 points/W
TOTAL
557 points/W
634 points/W

Performance/GHz
i5-2300
E5645
Test#1 (Integers)
813 points/GHz
635 points/GHz
Test#2 (FP)
2262 points/GHz
1397 points/GHz
Test#3 (Generic, ZIP)
1217 points/GHz
901 points/GHz
Test#1 (Memory)
1361 points/GHz
865 points/GHz
TOTAL
5654 points/GHz
3798 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