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Core i5-1235U vs i7-920


Description
The i5-1235U is based on Alder Lake architecture while the i7-920 is based on Nehalem Westmere.

Using the multithread performance as a reference, the i5-1235U gets a score of 288.4 k points while the i7-920 gets 47.2 k points.

Summarizing, the i5-1235U is 6.1 times faster than the i7-920 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a4
106a5
Core
Alder Lake-U
Bloomfield
Architecture
Alder Lake
Base frecuency
3.3 GHz
2.667 GHz
Boost frecuency
4.4 GHz
2.993 GHz
Socket
BGA 1700
LGA 1366
Cores/Threads
10/12
4/8
TDP
15 W
130 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
32+32 kB
Cache L2
1x1280+4x2048 kB
256 kB
Cache L3
12288 kB
8192 kB
Date
April 2022
November 2008
Mean monothread perf.
81.64k points
16.33k points
Mean multithread perf.
297.46k points
47.2k 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
i5-1235U
i7-920
Test#1 (Integers)
7.33k
1.97k (x0.27)
Test#2 (FP)
18.27k
4.43k (x0.24)
Test#3 (Generic, ZIP)
12.8k
2.75k (x0.22)
Test#1 (Memory)
13.2k
2.53k (x0.19)
TOTAL
51.61k
11.68k (x0.23)

Multithread

i5-1235U

i7-920
Test#1 (Integers)
29.24k
7.71k (x0.26)
Test#2 (FP)
83.32k
18.81k (x0.23)
Test#3 (Generic, ZIP)
54.53k
13.76k (x0.25)
Test#1 (Memory)
4.99k
5.07k (x1.02)
TOTAL
172.07k
45.34k (x0.26)

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
i5-1235U
i7-920
Test#1 (Integers)
23.53k
6.12k (x0.26)
Test#2 (FP)
23.51k
4.76k (x0.2)
Test#3 (Generic, ZIP)
14.71k
2.78k (x0.19)
Test#1 (Memory)
13.24k
2.67k (x0.2)
TOTAL
74.99k
16.33k (x0.22)

Multithread

i5-1235U

i7-920
Test#1 (Integers)
106.07k
19.26k (x0.18)
Test#2 (FP)
115.88k
14.96k (x0.13)
Test#3 (Generic, ZIP)
60.53k
8.05k (x0.13)
Test#1 (Memory)
5.88k
4.92k (x0.84)
TOTAL
288.36k
47.2k (x0.16)

Performance/W
i5-1235U
i7-920
Test#1 (Integers)
7072 points/W
148 points/W
Test#2 (FP)
7725 points/W
115 points/W
Test#3 (Generic, ZIP)
4035 points/W
62 points/W
Test#1 (Memory)
392 points/W
38 points/W
TOTAL
19224 points/W
363 points/W

Performance/GHz
i5-1235U
i7-920
Test#1 (Integers)
5347 points/GHz
2044 points/GHz
Test#2 (FP)
5344 points/GHz
1591 points/GHz
Test#3 (Generic, ZIP)
3344 points/GHz
930 points/GHz
Test#1 (Memory)
3009 points/GHz
891 points/GHz
TOTAL
17044 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