| | | | | | |

Xeon E5645 vs Core i5-2300


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

Using the multithread performance as a reference, the E5645 gets a score of 50.7 k points while the i5-2300 gets 52.9 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
206c2
206a7
Core
Westmere-EP
Sandy Bridge
Architecture
Base frecuency
2.4 GHz
2.8 GHz
Boost frecuency
2.8 GHz
3.1 GHz
Socket
LGA 1366
LGA 1155
Cores/Threads
6 /6
4/4
TDP
80 W
95 W
Cache L1 (d+i)
64 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
March 2010
May 2011
Mean monothread perf.
15.64k points
24.53k points
Mean multithread perf.
76.96k points
79.46k 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
i5-2300
Test#1 (Integers)
1.78k
2.52k (x1.42)
Test#2 (FP)
3.91k
7.01k (x1.79)
Test#3 (Generic, ZIP)
2.52k
3.77k (x1.49)
Test#1 (Memory)
2.42k
4.22k (x1.74)
TOTAL
10.64k
17.53k (x1.65)

Multithread

E5645

i5-2300
Test#1 (Integers)
9.67k
9.46k (x0.98)
Test#2 (FP)
22.92k
26.25k (x1.15)
Test#3 (Generic, ZIP)
14.31k
14.1k (x0.98)
Test#1 (Memory)
3.81k
3.13k (x0.82)
TOTAL
50.7k
52.93k (x1.04)

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

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