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Xeon E5645 vs Athlon II X2 260


Description
The E5645 is based on Westmere architecture while the 260 is based on K10.

Using the multithread performance as a reference, the E5645 gets a score of 77 k points while the 260 gets 27.5 k points.

Summarizing, the E5645 is 2.8 times faster than the 260. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206c2
100f63
Core
Westmere-EP
Regor
Architecture
Base frecuency
2.4 GHz
3.2 GHz
Boost frecuency
2.8 GHz
3.2 GHz
Socket
LGA 1366
Socket AM3
Cores/Threads
6 /6
2/2
TDP
80 W
65 W
Cache L1 (d+i)
64 kB
2x128 kB
Cache L2
256 kB
2x1024 kB
Cache L3
12288 kB
kB
Date
March 2010
May 2010
Mean monothread perf.
15.64k points
17.05k points
Mean multithread perf.
76.96k points
27.54k 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
260
Test#1 (Integers)
6.47k
6.04k (x0.93)
Test#2 (FP)
4.4k
6.2k (x1.41)
Test#3 (Generic, ZIP)
2.43k
3.11k (x1.28)
Test#1 (Memory)
2.33k
1.7k (x0.73)
TOTAL
15.64k
17.05k (x1.09)

Multithread

E5645

260
Test#1 (Integers)
34.43k
10.02k (x0.29)
Test#2 (FP)
24.23k
10.18k (x0.42)
Test#3 (Generic, ZIP)
14.48k
5.1k (x0.35)
Test#1 (Memory)
3.81k
2.25k (x0.59)
TOTAL
76.96k
27.54k (x0.36)

Performance/W
E5645
260
Test#1 (Integers)
430 points/W
154 points/W
Test#2 (FP)
303 points/W
157 points/W
Test#3 (Generic, ZIP)
181 points/W
78 points/W
Test#1 (Memory)
48 points/W
35 points/W
TOTAL
962 points/W
424 points/W

Performance/GHz
E5645
260
Test#1 (Integers)
2311 points/GHz
1886 points/GHz
Test#2 (FP)
1573 points/GHz
1939 points/GHz
Test#3 (Generic, ZIP)
867 points/GHz
971 points/GHz
Test#1 (Memory)
833 points/GHz
532 points/GHz
TOTAL
5584 points/GHz
5328 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