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Core i7-920 vs Virtual CPU 2,84GHz


Description
The i7-920 is based on Nehalem Westmere architecture while the 2,84GHz is based on -.

Using the multithread performance as a reference, the i7-920 gets a score of 47.2 k points while the 2,84GHz gets 79.8 k points.

Summarizing, the 2,84GHz is 1.7 times faster than the i7-920 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
f4a
Core
Bloomfield
-
Architecture
Nehalem Westmere
Nehalem Westmere
Base frecuency
2.667 GHz
2.84 GHz
Boost frecuency
2.993 GHz
2.84 GHz
Socket
LGA 1366
-
Cores/Threads
4/8
8/8
TDP
130 W
- W
Cache L1 (d+i)
32+32 kB
- kB
Cache L2
256 kB
- kB
Cache L3
8192 kB
- kB
Date
November 2008
-
Mean monothread perf.
16.33k points
21.22k points
Mean multithread perf.
47.2k points
79.76k 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
i7-920
2,84GHz
Test#1 (Integers)
6.12k
4.27k (x0.7)
Test#2 (FP)
4.76k
8.93k (x1.87)
Test#3 (Generic, ZIP)
2.78k
2.79k (x1)
Test#1 (Memory)
2.67k
5.23k (x1.96)
TOTAL
16.33k
21.22k (x1.3)

Multithread

i7-920

2,84GHz
Test#1 (Integers)
19.26k
19.35k (x1)
Test#2 (FP)
14.96k
40.57k (x2.71)
Test#3 (Generic, ZIP)
8.05k
13.15k (x1.63)
Test#1 (Memory)
4.92k
6.7k (x1.36)
TOTAL
47.2k
79.76k (x1.69)

Performance/W
i7-920
2,84GHz
Test#1 (Integers)
148 points/W