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Core 2 Duo E6550 vs Core i7-870


Description
The E6550 is based on Core architecture while the i7-870 is based on Nehalem.

Using the multithread performance as a reference, the E6550 gets a score of 16.4 k points while the i7-870 gets 42.5 k points.

Summarizing, the i7-870 is 2.6 times faster than the E6550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
6fb
106e5
Core
Conroe
Lynnfield
Architecture
Base frecuency
2.333 GHz
2.933 GHz
Boost frecuency
2.333 GHz
3.6 GHz
Socket
LGA 775
LGA 1156
Cores/Threads
2/2
4/8
TDP
65 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
4096 kB
4x256 kB
Cache L3
0 kB
8192 kB
Date
July 2007
September 2009
Mean monothread perf.
10.31k points
15.44k points
Mean multithread perf.
16.38k points
42.53k 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
E6550
i7-870
Test#1 (Integers)
2.34k
1.98k (x0.85)
Test#2 (FP)
2.34k
4.36k (x1.86)
Test#3 (Generic, ZIP)
2.35k
2.24k (x0.96)
Test#1 (Memory)
2.72k
2.72k (x1)
TOTAL
9.75k
11.3k (x1.16)

Multithread

E6550

i7-870
Test#1 (Integers)
4.67k
4.46k (x0.95)
Test#2 (FP)
4.68k
13.95k (x2.98)
Test#3 (Generic, ZIP)
4.71k
7.54k (x1.6)
Test#1 (Memory)
1.26k
1.7k (x1.35)
TOTAL
15.32k
27.65k (x1.8)

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
E6550
i7-870
Test#1 (Integers)
2.7k
5.86k (x2.17)
Test#2 (FP)
2.43k
4.53k (x1.86)
Test#3 (Generic, ZIP)
2.44k
2.36k (x0.96)
Test#1 (Memory)
2.74k
2.69k (x0.98)
TOTAL
10.31k
15.44k (x1.5)

Multithread

E6550

i7-870
Test#1 (Integers)
5.39k
17.53k (x3.25)
Test#2 (FP)
4.85k
13.65k (x2.82)
Test#3 (Generic, ZIP)
4.89k
7.93k (x1.62)
Test#1 (Memory)
1.26k
3.41k (x2.72)
TOTAL
16.38k
42.53k (x2.6)

Performance/W
E6550
i7-870
Test#1 (Integers)
83 points/W
185 points/W
Test#2 (FP)
75 points/W
144 points/W
Test#3 (Generic, ZIP)
75 points/W
83 points/W
Test#1 (Memory)
19 points/W
36 points/W
TOTAL
252 points/W
448 points/W

Performance/GHz
E6550
i7-870
Test#1 (Integers)
1156 points/GHz
1629 points/GHz
Test#2 (FP)
1041 points/GHz
1257 points/GHz
Test#3 (Generic, ZIP)
1047 points/GHz
655 points/GHz
Test#1 (Memory)
1173 points/GHz
748 points/GHz
TOTAL
4417 points/GHz
4289 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. 3.11.4