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A6 7400K vs Core i7-3930K


Description
The 7400K is based on Steamroller architecture while the i7-3930K is based on Sandy Bridge.

Using the multithread performance as a reference, the 7400K gets a score of 34.3 k points while the i7-3930K gets 155.9 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
630f01
206d7
Core
Kaveri
Sandy Bridge-E
Architecture
Base frecuency
3.5 GHz
3.2 GHz
Boost frecuency
3.9 GHz
3.8 GHz
Socket
Socket FM2+
LGA 2011
Cores/Threads
2/2
6/12
TDP
65 W
130 W
Cache L1 (d+i)
2x16+64 kB
32+32 kB
Cache L2
1024 kB
256 kB
Cache L3
0 kB
12288 kB
Date
July 2014
November 2011
Mean monothread perf.
24.01k points
27.76k points
Mean multithread perf.
34.28k points
155.86k 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
7400K
i7-3930K
Test#1 (Integers)
8.78k
10.08k (x1.15)
Test#2 (FP)
9.45k
9.06k (x0.96)
Test#3 (Generic, ZIP)
3.39k
4.45k (x1.31)
Test#1 (Memory)
2.39k
4.16k (x1.75)
TOTAL
24.01k
27.76k (x1.16)

Multithread

7400K

i7-3930K
Test#1 (Integers)
13.5k
62.22k (x4.61)
Test#2 (FP)
12.17k
60.25k (x4.95)
Test#3 (Generic, ZIP)
5.96k
30.42k (x5.1)
Test#1 (Memory)
2.65k
2.97k (x1.12)
TOTAL
34.28k
155.86k (x4.55)

Performance/W
7400K
i7-3930K
Test#1 (Integers)
208 points/W
479 points/W
Test#2 (FP)
187 points/W
463 points/W
Test#3 (Generic, ZIP)
92 points/W
234 points/W
Test#1 (Memory)
41 points/W
23 points/W
TOTAL
527 points/W
1199 points/W

Performance/GHz
7400K
i7-3930K
Test#1 (Integers)
2252 points/GHz
2653 points/GHz
Test#2 (FP)
2423 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
869 points/GHz
1172 points/GHz
Test#1 (Memory)
612 points/GHz
1096 points/GHz
TOTAL
6156 points/GHz
7304 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