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Core i7-930 vs Core 2 Quad Q9550


Description
The i7-930 is based on Westmere architecture while the Q9550 is based on Core.

Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the Q9550 gets 49 k points.

Summarizing, the i7-930 is 1.4 times faster than the Q9550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
1067a
Core
Bloomfield
Yorkfield
Architecture
Base frecuency
2.8 GHz
2.833 GHz
Boost frecuency
3.067 GHz
2.833 GHz
Socket
LGA 1366
LGA 775
Cores/Threads
4/8
4/4
TDP
130 W
95 W
Cache L1 (d+i)
32+32 kB
128+128 kB
Cache L2
256 kB
12288 kB
Cache L3
8192 kB
0 kB
Date
February 2010
March 2008

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
i7-930
Q9550
Test#1 (Integers)
1941
2597 (33.77%)
Test#2 (FP)
4384
6674 (52.26%)
Test#3 (Generic, ZIP)
2638
2718 (3.02%)
Test#1 (Memory)
2408
4433 (84.09%)
TOTAL
11371
16422 (44.42%)

Multithread

i7-930

Q9550
Test#1 (Integers)
7305
9915 (35.74%)
Test#2 (FP)
19361
25367 (31.02%)
Test#3 (Generic, ZIP)
13429
10314 (-23.20%)
Test#1 (Memory)
2011
3365 (67.36%)
TOTAL
42106
48962 (16.28%)

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
Q9550
Test#1 (Integers)
7276
3282 (-54.89%)
Test#2 (FP)
4819
7276 (50.98%)
Test#3 (Generic, ZIP)
2862
2835 (-0.97%)
Test#1 (Memory)
2623
3896 (48.53%)
TOTAL
17580
17289 (-1.66%)

Multithread

i7-930

Q9550
Test#1 (Integers)
28092
11721 (-58.28%)
Test#2 (FP)
21624
24914 (15.21%)
Test#3 (Generic, ZIP)
14826
9773 (-34.08%)
Test#1 (Memory)
4851
2572 (-46.98%)
TOTAL
69393
48980 (-29.42%)

Performance/W
i7-930
Q9550
Test#1 (Integers)
216 points/W
123 points/W
Test#2 (FP)
166 points/W
262 points/W
Test#3 (Generic, ZIP)
114 points/W
103 points/W
Test#1 (Memory)
37 points/W
27 points/W
TOTAL
534 points/W
516 points/W

Performance/GHz
i7-930
Q9550
Test#1 (Integers)
2372 points/GHz
1159 points/GHz
Test#2 (FP)
1571 points/GHz
2568 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
1001 points/GHz
Test#1 (Memory)
855 points/GHz
1375 points/GHz
TOTAL
5732 points/GHz
6103 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