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Core 2 Quad Q8400 vs Snapdragon 7c Gen 2


Description
The Q8400 is based on Core architecture while the 7c Gen 2 is based on Cortex-A76 / A55 (Kryo 468).

Using the multithread performance as a reference, the Q8400 gets a score of 51.9 k points while the 7c Gen 2 gets 37 k points.

Summarizing, the Q8400 is 1.4 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
1067a
f4a
Core
Yorkfield
Cortex-A76 / A55 (Kryo 468)
Architecture
Core
Base frecuency
2.666 GHz
2.55 GHz
Socket
LGA 775
-
Cores/Threads
4/4
8/8
TDP
95 W
7 W
Cache L1 (d+i)
128+128 kB
- kB
Cache L2
4096 kB
- kB
Cache L3
0 kB
- kB
Date
April 2009
May 2021
Mean monothread perf.
14.04k points
16.53k points
Mean multithread perf.
51.92k 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
Q8400
7c Gen 2
Test#1 (Integers)
3.08k
3.87k (x1.25)
Test#2 (FP)
6.8k
8.17k (x1.2)
Test#3 (Generic, ZIP)
2.73k
2.67k (x0.98)
Test#1 (Memory)
1.42k
1.82k (x1.28)
TOTAL
14.04k
16.53k (x1.18)

Multithread

Q8400

7c Gen 2
Test#1 (Integers)
12.25k
3.46k (x0.28)
Test#2 (FP)
26.84k
22.59k (x0.84)
Test#3 (Generic, ZIP)
10.82k
8.09k (x0.75)
Test#1 (Memory)
2.02k
2.85k (x1.41)
TOTAL
51.92k
37k (x0.71)

Performance/W
Q8400
7c Gen 2
Test#1 (Integers)
129 points/W
495 points/W
Test#2 (FP)
283 points/W
3228 points/W
Test#3 (Generic, ZIP)
114 points/W
1156 points/W
Test#1 (Memory)
21 points/W
407 points/W
TOTAL
547 points/W
5286 points/W

Performance/GHz
Q8400
7c Gen 2
Test#1 (Integers)
1157 points/GHz
1516 points/GHz
Test#2 (FP)
2551 points/GHz
3205 points/GHz
Test#3 (Generic, ZIP)
1025 points/GHz
1047 points/GHz
Test#1 (Memory)
532 points/GHz
712 points/GHz
TOTAL
5265 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