| | | | | | |

Core i7-950 vs Xeon E3-1225


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

Using the multithread performance as a reference, the i7-950 gets a score of 76.3 k points while the E3-1225 gets 69 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
106a5
206a7
Core
Bloomfield
Sandy Bridge
Architecture
Base frecuency
3.066 GHz
3.1 GHz
Boost frecuency
3.333 GHz
3.4 GHz
Socket
LGA 1366
LGA 1155
Cores/Threads
4/4
4/4
TDP
130 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
June 2009
April 2011
Mean monothread perf.
19.46k points
23.94k points
Mean multithread perf.
76.29k points
68.97k 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
i7-950
E3-1225
Test#1 (Integers)
8.01k
9.65k (x1.2)
Test#2 (FP)
5.38k
7.76k (x1.44)
Test#3 (Generic, ZIP)
3.11k
3.95k (x1.27)
Test#1 (Memory)
2.96k
2.57k (x0.87)
TOTAL
19.46k
23.94k (x1.23)

Multithread

i7-950

E3-1225
Test#1 (Integers)
31.53k
30.52k (x0.97)
Test#2 (FP)
24.16k
24.1k (x1)
Test#3 (Generic, ZIP)
15.84k
12.01k (x0.76)
Test#1 (Memory)
4.75k
2.34k (x0.49)
TOTAL
76.29k
68.97k (x0.9)

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

Performance/GHz
i7-950
E3-1225
Test#1 (Integers)
2403 points/GHz
2839 points/GHz
Test#2 (FP)
1614 points/GHz
2283 points/GHz
Test#3 (Generic, ZIP)
934 points/GHz
1162 points/GHz
Test#1 (Memory)
888 points/GHz
757 points/GHz
TOTAL
5839 points/GHz
7041 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