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Core i3-3217U vs Xeon E5645


Description
The i3-3217U is based on Ivy Bridge architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the i3-3217U gets a score of 32.8 k points while the E5645 gets 77 k points.

Summarizing, the E5645 is 2.3 times faster than the i3-3217U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
206c2
Core
Ivy Bridge
Westmere-EP
Architecture
Base frecuency
1.8 GHz
2.4 GHz
Boost frecuency
1.8 GHz
2.8 GHz
Socket
BGA1023
LGA 1366
Cores/Threads
2 /2
6 /6
TDP
17 W
80 W
Cache L1 (d+i)
32+32 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
3072 kB
12288 kB
Date
Jun 2012
March 2010

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i3-3217U
E5645
Test#1 (Integers)
1785
1779 (-0.34%)
Test#2 (FP)
5015
3910 (-22.03%)
Test#3 (Generic, ZIP)
2208
2524 (14.32%)
Test#1 (Memory)
2310
2422 (4.85%)
TOTAL
11318
10636 (-6.03%)

Multithread

i3-3217U

E5645
Test#1 (Integers)
3564
9666 (171.25%)
Test#2 (FP)
11466
22915 (99.85%)
Test#3 (Generic, ZIP)
5339
14311 (168.05%)
Test#1 (Memory)
2539
3808 (49.97%)
TOTAL
22908
50701 (121.32%)

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
i3-3217U
E5645
Test#1 (Integers)
5374
6472 (20.42%)
Test#2 (FP)
5254
4404 (-16.18%)
Test#3 (Generic, ZIP)
2202
2428 (10.22%)
Test#1 (Memory)
2249
2333 (3.71%)
TOTAL
15081
15636 (3.68%)

Multithread

i3-3217U

E5645
Test#1 (Integers)
12458
34434 (176.41%)
Test#2 (FP)
12137
24230 (99.64%)
Test#3 (Generic, ZIP)
5519
14479 (162.37%)
Test#1 (Memory)
2637
3812 (44.58%)
TOTAL
32750
76955 (134.98%)

Performance/W
i3-3217U
E5645
Test#1 (Integers)
733 points/W
430 points/W
Test#2 (FP)
714 points/W
303 points/W
Test#3 (Generic, ZIP)
325 points/W
181 points/W
Test#1 (Memory)
155 points/W
48 points/W
TOTAL
1926 points/W
962 points/W

Performance/GHz
i3-3217U
E5645
Test#1 (Integers)
2986 points/GHz
2311 points/GHz
Test#2 (FP)
2919 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
1224 points/GHz
867 points/GHz
Test#1 (Memory)
1250 points/GHz
833 points/GHz
TOTAL
8378 points/GHz
5584 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. 3.7.8