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Core i7-920 vs Snapdragon 7c Gen 2


Description
The i7-920 is based on Nehalem Westmere architecture while the 7c Gen 2 is based on Cortex-A76 / A55 (Kryo 468).

Using the multithread performance as a reference, the i7-920 gets a score of 47.2 k points while the 7c Gen 2 gets 37 k points.

Summarizing, the i7-920 is 1.3 times faster than the 7c Gen 2. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
f4a
Core
Bloomfield
Cortex-A76 / A55 (Kryo 468)
Architecture
Nehalem Westmere
Nehalem Westmere
Base frecuency
2.667 GHz
2.55 GHz
Boost frecuency
2.993 GHz
2.55 GHz
Socket
LGA 1366
-
Cores/Threads
4/8
8/8
TDP
130 W
7 W
Cache L1 (d+i)
32+32 kB
- kB
Cache L2
256 kB
- kB
Cache L3
8192 kB
- kB
Date
November 2008
May 2021
Mean monothread perf.
16.33k points
16.53k points
Mean multithread perf.
47.2k points
37k 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
7c Gen 2
Test#1 (Integers)
6.12k
3.87k (x0.63)
Test#2 (FP)
4.76k
8.17k (x1.72)
Test#3 (Generic, ZIP)
2.78k
2.67k (x0.96)
Test#1 (Memory)
2.67k
1.82k (x0.68)
TOTAL
16.33k
16.53k (x1.01)

Multithread

i7-920

7c Gen 2
Test#1 (Integers)
19.26k
3.46k (x0.18)
Test#2 (FP)
14.96k
22.59k (x1.51)
Test#3 (Generic, ZIP)
8.05k
8.09k (x1.01)
Test#1 (Memory)
4.92k
2.85k (x0.58)
TOTAL
47.2k
37k (x0.78)

Performance/W
i7-920
7c Gen 2
Test#1 (Integers)
148 points/W
495 points/W
Test#2 (FP)
115 points/W
3228 points/W
Test#3 (Generic, ZIP)
62 points/W
1156 points/W
Test#1 (Memory)
38 points/W
407 points/W
TOTAL
363 points/W
5286 points/W

Performance/GHz
i7-920
7c Gen 2
Test#1 (Integers)
2044 points/GHz
1516 points/GHz
Test#2 (FP)
1591 points/GHz
3205 points/GHz
Test#3 (Generic, ZIP)
930 points/GHz
1047 points/GHz
Test#1 (Memory)
891 points/GHz
712 points/GHz
TOTAL
5457 points/GHz
6481 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