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Core i7-3930K vs i5-2400


Description
Both models i7-3930K and i5-2400 are based on Sandy Bridge architecture.

"Sandy Bridge codename was originally ""Gesher"". The development began in 2005 and four years later, the first Sandy Bridge CPU was presented. The most prominent features are Intel Turbo Boost 2.0, AES encryption and SHA-1 hashing acceleration, Advanced Vector Extensions (AVX) 256-bit instruction set and the ability to have up to 8 physical cores or 16 logical cores through Hyper-Threading."

Using the multithread performance as a reference, the i7-3930K gets a score of 155.9 k points while the i5-2400 gets 84.4 k points.

Summarizing, the i7-3930K is 1.8 times faster than the i5-2400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206d7
206a7
Core
Sandy Bridge-E
Sandy Bridge
Architecture
Base frecuency
3.2 GHz
3.1 GHz
Boost frecuency
3.8 GHz
3.4 GHz
Socket
LGA 2011
LGA 1155
Cores/Threads
6/12
4/4
TDP
130 W
95 W
Cache L1 (d+i)
32+32 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
November 2011
January 2011
Mean monothread perf.
27.76k points
25.49k points
Mean multithread perf.
155.86k points
84.36k 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
i5-2400
Test#1 (Integers)
10.08k
9.16k (x0.91)
Test#2 (FP)
9.06k
8.2k (x0.91)
Test#3 (Generic, ZIP)
4.45k
3.95k (x0.89)
Test#1 (Memory)
4.16k
4.17k (x1)
TOTAL
27.76k
25.49k (x0.92)

Multithread

i7-3930K

i5-2400
Test#1 (Integers)
62.22k
34.74k (x0.56)
Test#2 (FP)
60.25k
31.07k (x0.52)
Test#3 (Generic, ZIP)
30.42k
14.86k (x0.49)
Test#1 (Memory)
2.97k
3.69k (x1.24)
TOTAL
155.86k
84.36k (x0.54)

Performance/W
i7-3930K
i5-2400
Test#1 (Integers)
479 points/W
366 points/W
Test#2 (FP)
463 points/W
327 points/W
Test#3 (Generic, ZIP)
234 points/W
156 points/W
Test#1 (Memory)
23 points/W
39 points/W
TOTAL
1199 points/W
888 points/W

Performance/GHz
i7-3930K
i5-2400
Test#1 (Integers)
2653 points/GHz
2695 points/GHz
Test#2 (FP)
2383 points/GHz
2411 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
1163 points/GHz
Test#1 (Memory)
1096 points/GHz
1228 points/GHz
TOTAL
7304 points/GHz
7497 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