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Core i7-930 vs i7-640LM


Description
Both models i7-930 and i7-640LM are based on Westmere architecture.



Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the i7-640LM gets 31.7 k points.

Summarizing, the i7-930 is 2.2 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
20655
Core
Bloomfield
Calpella
Architecture
Base frecuency
2.8 GHz
2.133 GHz
Boost frecuency
3.067 GHz
2.667 GHz
Socket
LGA 1366
BGA1288
Cores/Threads
4/8
2/4
TDP
130 W
25 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
February 2010
January 2010

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
i7-930
i7-640LM
Test#1 (Integers)
7276
7005 (-3.72%)
Test#2 (FP)
4819
4581 (-4.94%)
Test#3 (Generic, ZIP)
2862
2730 (-4.61%)
Test#1 (Memory)
2623
2032 (-22.52%)
TOTAL
17580
16349 (-7.00%)

Multithread

i7-930

i7-640LM
Test#1 (Integers)
28092
12932 (-53.97%)
Test#2 (FP)
21624
10213 (-52.77%)
Test#3 (Generic, ZIP)
14826
6225 (-58.01%)
Test#1 (Memory)
4851
2366 (-51.22%)
TOTAL
69393
31737 (-54.27%)

Performance/W
i7-930
i7-640LM
Test#1 (Integers)
216 points/W
517 points/W
Test#2 (FP)
166 points/W
409 points/W
Test#3 (Generic, ZIP)
114 points/W
249 points/W
Test#1 (Memory)
37 points/W
95 points/W
TOTAL
534 points/W
1269 points/W

Performance/GHz
i7-930
i7-640LM
Test#1 (Integers)
2372 points/GHz
2627 points/GHz
Test#2 (FP)
1571 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
1024 points/GHz
Test#1 (Memory)
855 points/GHz
762 points/GHz
TOTAL
5732 points/GHz
6130 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