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Core i3-2120 vs Xeon X5675


Description
The i3-2120 is based on Sandy Bridge architecture while the X5675 is based on Westmere.

Using the multithread performance as a reference, the i3-2120 gets a score of 51.2 k points while the X5675 gets 124.9 k points.

Summarizing, the X5675 is 2.4 times faster than the i3-2120 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
206c2
Core
Sandy Bridge
Westmere-EP
Architecture
Base frecuency
3.3 GHz
3.067 GHz
Boost frecuency
3.3 GHz
3.467 GHz
Socket
LGA 1155
LGA 1366
Cores/Threads
2/2
6 /12
TDP
65 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
3072 kB
12288 kB
Date
February 2012
February 2011
Mean monothread perf.
24.23k points
21.04k points
Mean multithread perf.
53.48k points
124.92k 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
i3-2120
X5675
Test#1 (Integers)
9.82k
8.77k (x0.89)
Test#2 (FP)
7.9k
5.82k (x0.74)
Test#3 (Generic, ZIP)
3.98k
3.47k (x0.87)
Test#1 (Memory)
2.95k
2.98k (x1.01)
TOTAL
24.64k
21.04k (x0.85)

Multithread

i3-2120

X5675
Test#1 (Integers)
20.46k
53.23k (x2.6)
Test#2 (FP)
17.77k
39.35k (x2.21)
Test#3 (Generic, ZIP)
10.03k
27.05k (x2.7)
Test#1 (Memory)
2.94k
5.28k (x1.79)
TOTAL
51.21k
124.92k (x2.44)

Performance/W
i3-2120
X5675
Test#1 (Integers)
315 points/W
560 points/W
Test#2 (FP)
273 points/W
414 points/W
Test#3 (Generic, ZIP)
154 points/W
285 points/W
Test#1 (Memory)
45 points/W
56 points/W
TOTAL
788 points/W
1315 points/W

Performance/GHz
i3-2120
X5675
Test#1 (Integers)
2974 points/GHz
2529 points/GHz
Test#2 (FP)
2393 points/GHz
1679 points/GHz
Test#3 (Generic, ZIP)
1206 points/GHz
1001 points/GHz
Test#1 (Memory)
895 points/GHz
860 points/GHz
TOTAL
7468 points/GHz
6070 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