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Xeon E3-1225 vs Core i7-950


Description
The E3-1225 is based on Sandy Bridge architecture while the i7-950 is based on Westmere.

Using the multithread performance as a reference, the E3-1225 gets a score of 69 k points while the i7-950 gets 76.3 k points.

Summarizing, the i7-950 is 1.1 times faster than the E3-1225. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
106a5
Core
Sandy Bridge
Bloomfield
Architecture
Base frecuency
3.1 GHz
3.066 GHz
Boost frecuency
3.4 GHz
3.333 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
4/4
4/4
TDP
95 W
130 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
April 2011
June 2009
Mean monothread perf.
23.94k points
19.46k points
Mean multithread perf.
68.97k 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
E3-1225
i7-950
Test#1 (Integers)
9.65k
8.01k (x0.83)
Test#2 (FP)
7.76k
5.38k (x0.69)
Test#3 (Generic, ZIP)
3.95k
3.11k (x0.79)
Test#1 (Memory)
2.57k
2.96k (x1.15)
TOTAL
23.94k
19.46k (x0.81)

Multithread

E3-1225

i7-950
Test#1 (Integers)
30.52k
31.53k (x1.03)
Test#2 (FP)
24.1k
24.16k (x1)
Test#3 (Generic, ZIP)
12.01k
15.84k (x1.32)
Test#1 (Memory)
2.34k
4.75k (x2.03)
TOTAL
68.97k
76.29k (x1.11)

Performance/W
E3-1225
i7-950
Test#1 (Integers)
321 points/W
243 points/W
Test#2 (FP)
254 points/W
186 points/W
Test#3 (Generic, ZIP)
126 points/W
122 points/W
Test#1 (Memory)
25 points/W
37 points/W
TOTAL
726 points/W
587 points/W

Performance/GHz
E3-1225
i7-950
Test#1 (Integers)
2839 points/GHz
2403 points/GHz
Test#2 (FP)
2283 points/GHz
1614 points/GHz
Test#3 (Generic, ZIP)
1162 points/GHz
934 points/GHz
Test#1 (Memory)
757 points/GHz
888 points/GHz
TOTAL
7041 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