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Xeon X3430 vs E5645


Description
The X3430 is based on Nehalem architecture while the E5645 is based on Westmere.

Using the multithread performance as a reference, the X3430 gets a score of 55.7 k points while the E5645 gets 77 k points.

Summarizing, the E5645 is 1.4 times faster than the X3430. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
206c2
Core
Lynnfield
Westmere-EP
Architecture
Base frecuency
2.4 GHz
2.4 GHz
Boost frecuency
2.8 GHz
2.8 GHz
Socket
LGA1156
LGA 1366
Cores/Threads
4/4
6 /6
TDP
95 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
12288 kB
Date
October 2009
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
X3430
E5645
Test#1 (Integers)
1745
1779 (1.94%)
Test#2 (FP)
3951
3910 (-1.03%)
Test#3 (Generic, ZIP)
2295
2524 (9.99%)
Test#1 (Memory)
2656
2422 (-8.79%)
TOTAL
10647
10636 (-0.10%)

Multithread

X3430

E5645
Test#1 (Integers)
6806
9666 (42.02%)
Test#2 (FP)
15370
22915 (49.09%)
Test#3 (Generic, ZIP)
8896
14311 (60.87%)
Test#1 (Memory)
4421
3808 (-13.86%)
TOTAL
35493
50701 (42.85%)

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
X3430
E5645
Test#1 (Integers)
6407
6472 (1.02%)
Test#2 (FP)
4275
4404 (3.02%)
Test#3 (Generic, ZIP)
2384
2428 (1.81%)
Test#1 (Memory)
2672
2333 (-12.70%)
TOTAL
15738
15636 (-0.65%)

Multithread

X3430

E5645
Test#1 (Integers)
25195
34434 (36.67%)
Test#2 (FP)
16764
24230 (44.54%)
Test#3 (Generic, ZIP)
9326
14479 (55.26%)
Test#1 (Memory)
4372
3812 (-12.81%)
TOTAL
55657
76955 (38.27%)

Performance/W
X3430
E5645
Test#1 (Integers)
265 points/W
430 points/W
Test#2 (FP)
176 points/W
303 points/W
Test#3 (Generic, ZIP)
98 points/W
181 points/W
Test#1 (Memory)
46 points/W
48 points/W
TOTAL
586 points/W
962 points/W

Performance/GHz
X3430
E5645
Test#1 (Integers)
2288 points/GHz
2311 points/GHz
Test#2 (FP)
1527 points/GHz
1573 points/GHz
Test#3 (Generic, ZIP)
852 points/GHz
867 points/GHz
Test#1 (Memory)
954 points/GHz
833 points/GHz
TOTAL
5621 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