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Core i7-920 vs i3-4030U


Description
The i7-920 is based on Nehalem Westmere architecture while the i3-4030U is based on Haswell.

Using the multithread performance as a reference, the i7-920 gets a score of 47.2 k points while the i3-4030U gets 36.7 k points.

Summarizing, the i7-920 is 1.3 times faster than the i3-4030U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
40651
Core
Bloomfield
Haswell
Architecture
Nehalem Westmere
Base frecuency
2.667 GHz
1.9 GHz
Boost frecuency
2.993 GHz
1.9 GHz
Socket
LGA 1366
BGA1168
Cores/Threads
4/8
2/4
TDP
130 W
15 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
November 2008
April 2014
Mean monothread perf.
16.33k points
21.57k points
Mean multithread perf.
47.2k points
46.09k 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
i7-920
i3-4030U
Test#1 (Integers)
1.97k
2.14k (x1.09)
Test#2 (FP)
4.43k
5.4k (x1.22)
Test#3 (Generic, ZIP)
2.75k
2.37k (x0.86)
Test#1 (Memory)
2.53k
2.01k (x0.8)
TOTAL
11.68k
11.93k (x1.02)

Multithread

i7-920

i3-4030U
Test#1 (Integers)
7.71k
3.94k (x0.51)
Test#2 (FP)
18.81k
13.68k (x0.73)
Test#3 (Generic, ZIP)
13.76k
5.78k (x0.42)
Test#1 (Memory)
5.07k
2.44k (x0.48)
TOTAL
45.34k
25.84k (x0.57)

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
i3-4030U
Test#1 (Integers)
6.12k
6.7k (x1.09)
Test#2 (FP)
4.76k
5.99k (x1.26)
Test#3 (Generic, ZIP)
2.78k
2.65k (x0.95)
Test#1 (Memory)
2.67k
2.13k (x0.8)
TOTAL
16.33k
17.47k (x1.07)

Multithread

i7-920

i3-4030U
Test#1 (Integers)
19.26k
14.3k (x0.74)
Test#2 (FP)
14.96k
13.83k (x0.92)
Test#3 (Generic, ZIP)
8.05k
6.12k (x0.76)
Test#1 (Memory)
4.92k
2.48k (x0.5)
TOTAL
47.2k
36.74k (x0.78)

Performance/W
i7-920
i3-4030U
Test#1 (Integers)
148 points/W
953 points/W
Test#2 (FP)
115 points/W
922 points/W
Test#3 (Generic, ZIP)
62 points/W
408 points/W
Test#1 (Memory)
38 points/W
166 points/W
TOTAL
363 points/W
2449 points/W

Performance/GHz
i7-920
i3-4030U
Test#1 (Integers)
2044 points/GHz
3525 points/GHz
Test#2 (FP)
1591 points/GHz
3150 points/GHz
Test#3 (Generic, ZIP)
930 points/GHz
1395 points/GHz
Test#1 (Memory)
891 points/GHz
1122 points/GHz
TOTAL
5457 points/GHz
9193 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