| | | | | | |

Core i7-920 vs i5-1235U


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

Using the multithread performance as a reference, the i7-920 gets a score of 47.2 k points while the i5-1235U gets 288.4 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
106a5
906a4
Core
Bloomfield
Alder Lake-U
Architecture
Nehalem Westmere
Base frecuency
2.667 GHz
3.3 GHz
Boost frecuency
2.993 GHz
4.4 GHz
Socket
LGA 1366
BGA 1700
Cores/Threads
4/8
10/12
TDP
130 W
15 W
Cache L1 (d+i)
32+32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
256 kB
1x1280+4x2048 kB
Cache L3
8192 kB
12288 kB
Date
November 2008
April 2022
Mean monothread perf.
16.33k points
81.64k points
Mean multithread perf.
47.2k points
297.46k 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
i5-1235U
Test#1 (Integers)
1.97k
7.33k (x3.73)
Test#2 (FP)
4.43k
18.27k (x4.12)
Test#3 (Generic, ZIP)
2.75k
12.8k (x4.65)
Test#1 (Memory)
2.53k
13.2k (x5.22)
TOTAL
11.68k
51.61k (x4.42)

Multithread

i7-920

i5-1235U
Test#1 (Integers)
7.71k
29.24k (x3.79)
Test#2 (FP)
18.81k
83.32k (x4.43)
Test#3 (Generic, ZIP)
13.76k
54.53k (x3.96)
Test#1 (Memory)
5.07k
4.99k (x0.98)
TOTAL
45.34k
172.07k (x3.79)

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
i5-1235U
Test#1 (Integers)
6.12k
23.53k (x3.85)
Test#2 (FP)
4.76k
23.51k (x4.94)
Test#3 (Generic, ZIP)
2.78k
14.71k (x5.28)
Test#1 (Memory)
2.67k
13.24k (x4.96)
TOTAL
16.33k
74.99k (x4.59)

Multithread

i7-920

i5-1235U
Test#1 (Integers)
19.26k
106.07k (x5.51)
Test#2 (FP)
14.96k
115.88k (x7.74)
Test#3 (Generic, ZIP)
8.05k
60.53k (x7.52)
Test#1 (Memory)
4.92k
5.88k (x1.19)
TOTAL
47.2k
288.36k (x6.11)

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

Performance/GHz
i7-920
i5-1235U
Test#1 (Integers)
2044 points/GHz
5347 points/GHz
Test#2 (FP)
1591 points/GHz
5344 points/GHz
Test#3 (Generic, ZIP)
930 points/GHz
3344 points/GHz
Test#1 (Memory)
891 points/GHz
3009 points/GHz
TOTAL
5457 points/GHz
17044 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