Snapdragon 7c Gen 2 vs Pentium D 820
Description
The 7c Gen 2 is based on Cortex-A76 / A55 (Kryo 468) architecture while the 820 is based on NetBurst.
Using the multithread performance as a reference, the 7c Gen 2 gets a score of 37 k points while the 820 gets 14.1 k points.
Summarizing, the 7c Gen 2 is 2.6 times faster than the 820. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 7c Gen 2 gets a score of 37 k points while the 820 gets 14.1 k points.
Summarizing, the 7c Gen 2 is 2.6 times faster than the 820. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
f4a
f44
Core
Cortex-A76 / A55 (Kryo 468)
Smithfield
Base frecuency
2.55 GHz
2.8 GHz
Socket
-
LGA 775
Cores/Threads
8/8
2/2
TDP
7 W
130 W
Cache L1 (d+i)
- kB
16+8 kB
Cache L2
- kB
2048 kB
Cache L3
- kB
0 kB
Date
May 2021
May 2005
Mean monothread perf.
16.53k points
7.45k points
Mean multithread perf.
37k points
14.07k 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
7c Gen 2
820
Test#1 (Integers)
3.87k
1.93k (x0.5)
Test#2 (FP)
8.17k
3.11k (x0.38)
Test#3 (Generic, ZIP)
2.67k
1.49k (x0.56)
Test#1 (Memory)
1.82k
0.91k (x0.5)
TOTAL
16.53k
7.45k (x0.45)
Multithread
7c Gen 2
820
Test#1 (Integers)
3.46k
3.92k (x1.13)
Test#2 (FP)
22.59k
6.23k (x0.28)
Test#3 (Generic, ZIP)
8.09k
2.99k (x0.37)
Test#1 (Memory)
2.85k
0.94k (x0.33)
TOTAL
37k
14.07k (x0.38)
Performance/W
7c Gen 2
820
Test#1 (Integers)
495 points/W
30 points/W
Test#2 (FP)
3228 points/W
48 points/W
Test#3 (Generic, ZIP)
1156 points/W
23 points/W
Test#1 (Memory)
407 points/W
7 points/W
TOTAL
5286 points/W
108 points/W
Performance/GHz
7c Gen 2
820
Test#1 (Integers)
1516 points/GHz
690 points/GHz
Test#2 (FP)
3205 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
1047 points/GHz
534 points/GHz
Test#1 (Memory)
712 points/GHz
324 points/GHz
TOTAL
6481 points/GHz
2660 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4