Core i7-930 vs Core 2 Duo P8400
Description
The i7-930 is based on Westmere architecture while the P8400 is based on Core.
Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the P8400 gets 21 k points.
Summarizing, the i7-930 is 3.3 times faster than the P8400. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the P8400 gets 21 k points.
Summarizing, the i7-930 is 3.3 times faster than the P8400. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
106a5
10676
Core
Bloomfield
Peryn-3M
Base frecuency
2.8 GHz
2.267 GHz
Boost frecuency
3.067 GHz
2.267 GHz
Socket
LGA 1366
Socket P
Cores/Threads
4/8
2/2
TDP
130 W
25 W
Cache L1 (d+i)
32+32 kB
2x32 kB
Cache L2
256 kB
3072 kB
Cache L3
8192 kB
0 kB
Date
February 2010
July 2008
Mean monothread perf.
17.58k points
11.38k points
Mean multithread perf.
69.39k points
21.02k points
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
P8400
Test#1 (Integers)
1.94k
1.78k (x0.92)
Test#2 (FP)
4.38k
4.95k (x1.13)
Test#3 (Generic, ZIP)
2.64k
2.08k (x0.79)
Test#1 (Memory)
2.41k
1.44k (x0.6)
TOTAL
11.37k
10.24k (x0.9)
Multithread
i7-930
P8400
Test#1 (Integers)
7.3k
3.53k (x0.48)
Test#2 (FP)
19.36k
9.75k (x0.5)
Test#3 (Generic, ZIP)
13.43k
4.07k (x0.3)
Test#1 (Memory)
2.01k
1.44k (x0.72)
TOTAL
42.11k
18.79k (x0.45)
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
P8400
Test#1 (Integers)
7.28k
2.43k (x0.33)
Test#2 (FP)
4.82k
5.4k (x1.12)
Test#3 (Generic, ZIP)
2.86k
2.13k (x0.74)
Test#1 (Memory)
2.62k
1.43k (x0.54)
TOTAL
17.58k
11.38k (x0.65)
Multithread
i7-930
P8400
Test#1 (Integers)
28.09k
4.81k (x0.17)
Test#2 (FP)
21.62k
10.58k (x0.49)
Test#3 (Generic, ZIP)
14.83k
4.18k (x0.28)
Test#1 (Memory)
4.85k
1.45k (x0.3)
TOTAL
69.39k
21.02k (x0.3)
Performance/W
i7-930
P8400
Test#1 (Integers)
216 points/W
193 points/W
Test#2 (FP)
166 points/W
423 points/W
Test#3 (Generic, ZIP)
114 points/W
167 points/W
Test#1 (Memory)
37 points/W
58 points/W
TOTAL
534 points/W
841 points/W
Performance/GHz
i7-930
P8400
Test#1 (Integers)
2372 points/GHz
1071 points/GHz
Test#2 (FP)
1571 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
938 points/GHz
Test#1 (Memory)
855 points/GHz
629 points/GHz
TOTAL
5732 points/GHz
5022 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4