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Xeon E5472 vs Core i7-950


Description
The E5472 is based on Core architecture while the i7-950 is based on Westmere.

Using the multithread performance as a reference, the E5472 gets a score of 48.6 k points while the i7-950 gets 76.3 k points.

Summarizing, the i7-950 is 1.6 times faster than the E5472. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
10676
106a5
Core
Harpertown
Bloomfield
Architecture
Base frecuency
3 GHz
3.066 GHz
Boost frecuency
3 GHz
3.333 GHz
Socket
LGA-771
LGA 1366
Cores/Threads
4/4
4/4
TDP
80 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
2x6144 kB
256 kB
Cache L3
kB
8192 kB
Date
November 2007
June 2009
Mean monothread perf.
16.62k points
19.46k points
Mean multithread perf.
48.62k points
76.29k 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
E5472
i7-950
Test#1 (Integers)
2.88k
8.01k (x2.78)
Test#2 (FP)
6.36k
5.38k (x0.85)
Test#3 (Generic, ZIP)
2.55k
3.11k (x1.22)
Test#1 (Memory)
4.83k
2.96k (x0.61)
TOTAL
16.62k
19.46k (x1.17)

Multithread

E5472

i7-950
Test#1 (Integers)
11.19k
31.53k (x2.82)
Test#2 (FP)
24.85k
24.16k (x0.97)
Test#3 (Generic, ZIP)
10.04k
15.84k (x1.58)
Test#1 (Memory)
2.54k
4.75k (x1.87)
TOTAL
48.62k
76.29k (x1.57)

Performance/W
E5472
i7-950
Test#1 (Integers)
140 points/W
243 points/W
Test#2 (FP)
311 points/W
186 points/W
Test#3 (Generic, ZIP)
125 points/W
122 points/W
Test#1 (Memory)
32 points/W
37 points/W
TOTAL
608 points/W
587 points/W

Performance/GHz
E5472
i7-950
Test#1 (Integers)
961 points/GHz
2403 points/GHz
Test#2 (FP)
2119 points/GHz
1614 points/GHz
Test#3 (Generic, ZIP)
850 points/GHz
934 points/GHz
Test#1 (Memory)
1610 points/GHz
888 points/GHz
TOTAL
5539 points/GHz
5839 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