Core i7-3930K vs A6 7400K
Description
The i7-3930K is based on Sandy Bridge architecture while the 7400K is based on Steamroller.
Using the multithread performance as a reference, the i7-3930K gets a score of 155.9 k points while the 7400K gets 34.3 k points.
Summarizing, the i7-3930K is 4.5 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-3930K gets a score of 155.9 k points while the 7400K gets 34.3 k points.
Summarizing, the i7-3930K is 4.5 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206d7
630f01
Core
Sandy Bridge-E
Kaveri
Base frecuency
3.2 GHz
3.5 GHz
Boost frecuency
3.8 GHz
3.9 GHz
Socket
LGA 2011
Socket FM2+
Cores/Threads
6/12
2/2
TDP
130 W
65 W
Cache L1 (d+i)
32+32 kB
2x16+64 kB
Cache L2
256 kB
1024 kB
Cache L3
12288 kB
0 kB
Date
November 2011
July 2014
Mean monothread perf.
27.76k points
24.01k points
Mean multithread perf.
155.86k points
34.28k points
AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-3930K
7400K
Test#1 (Integers)
10.08k
8.78k (x0.87)
Test#2 (FP)
9.06k
9.45k (x1.04)
Test#3 (Generic, ZIP)
4.45k
3.39k (x0.76)
Test#1 (Memory)
4.16k
2.39k (x0.57)
TOTAL
27.76k
24.01k (x0.86)
Multithread
i7-3930K
7400K
Test#1 (Integers)
62.22k
13.5k (x0.22)
Test#2 (FP)
60.25k
12.17k (x0.2)
Test#3 (Generic, ZIP)
30.42k
5.96k (x0.2)
Test#1 (Memory)
2.97k
2.65k (x0.89)
TOTAL
155.86k
34.28k (x0.22)
Performance/W
i7-3930K
7400K
Test#1 (Integers)
479 points/W
208 points/W
Test#2 (FP)
463 points/W
187 points/W
Test#3 (Generic, ZIP)
234 points/W
92 points/W
Test#1 (Memory)
23 points/W
41 points/W
TOTAL
1199 points/W
527 points/W
Performance/GHz
i7-3930K
7400K
Test#1 (Integers)
2653 points/GHz
2252 points/GHz
Test#2 (FP)
2383 points/GHz
2423 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
869 points/GHz
Test#1 (Memory)
1096 points/GHz
612 points/GHz
TOTAL
7304 points/GHz
6156 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