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Core 2 Duo E8500 vs Core i7-920


Description
The E8500 is based on Core architecture while the i7-920 is based on Nehalem Westmere.

Using the multithread performance as a reference, the E8500 gets a score of 31.2 k points while the i7-920 gets 47.2 k points.

Summarizing, the i7-920 is 1.5 times faster than the E8500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
106a5
Core
Wolfdale
Bloomfield
Architecture
Core
Base frecuency
3.167 GHz
2.667 GHz
Boost frecuency
3.167 GHz
2.993 GHz
Socket
LGA 775
LGA 1366
Cores/Threads
2/2
4/8
TDP
65 W
130 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
6144 kB
256 kB
Cache L3
kB
8192 kB
Date
August 2008
November 2008
Mean monothread perf.
19.46k points
16.33k points
Mean multithread perf.
31.21k points
47.2k points

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
E8500
i7-920
Test#1 (Integers)
3.65k
6.12k (x1.68)
Test#2 (FP)
8.07k
4.76k (x0.59)
Test#3 (Generic, ZIP)
3.15k
2.78k (x0.88)
Test#1 (Memory)
4.59k
2.67k (x0.58)
TOTAL
19.46k
16.33k (x0.84)

Multithread

E8500

i7-920
Test#1 (Integers)
7.11k
19.26k (x2.71)
Test#2 (FP)
15.79k
14.96k (x0.95)
Test#3 (Generic, ZIP)
6.2k
8.05k (x1.3)
Test#1 (Memory)
2.13k
4.92k (x2.32)
TOTAL
31.21k
47.2k (x1.51)

Performance/W
E8500
i7-920
Test#1 (Integers)
109 points/W
148 points/W
Test#2 (FP)
243 points/W
115 points/W
Test#3 (Generic, ZIP)
95 points/W
62 points/W
Test#1 (Memory)
33 points/W
38 points/W
TOTAL
480 points/W
363 points/W

Performance/GHz
E8500
i7-920
Test#1 (Integers)
1151 points/GHz
2044 points/GHz
Test#2 (FP)
2549 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
994 points/GHz
930 points/GHz
Test#1 (Memory)
1450 points/GHz
891 points/GHz
TOTAL
6144 points/GHz
5457 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