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Core i7-930 vs i5-6400


Description
The i7-930 is based on Westmere architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-930 gets a score of 69.4 k points while the i5-6400 gets 130.8 k points.

Summarizing, the i5-6400 is 1.9 times faster than the i7-930 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
506e3
Core
Bloomfield
Skylake-S
Architecture
Base frecuency
2.8 GHz
2.7 GHz
Boost frecuency
3.067 GHz
3.3 GHz
Socket
LGA 1366
LGA 1151
Cores/Threads
4/8
4/4
TDP
130 W
65 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
February 2010
September 2015

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-930
i5-6400
Test#1 (Integers)
1941
3185 (64.06%)
Test#2 (FP)
4384
12581 (187.01%)
Test#3 (Generic, ZIP)
2638
4105 (55.59%)
Test#1 (Memory)
2408
3934 (63.36%)
TOTAL
11371
23805 (109.34%)

Multithread

i7-930

i5-6400
Test#1 (Integers)
7305
10777 (47.53%)
Test#2 (FP)
19361
44113 (127.84%)
Test#3 (Generic, ZIP)
13429
13887 (3.41%)
Test#1 (Memory)
2011
7829 (289.33%)
TOTAL
42106
76606 (81.94%)

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
i7-930
i5-6400
Test#1 (Integers)
7276
11411 (56.84%)
Test#2 (FP)
4819
16352 (239.32%)
Test#3 (Generic, ZIP)
2862
4146 (44.85%)
Test#1 (Memory)
2623
3277 (24.92%)
TOTAL
17580
35186 (100.15%)

Multithread

i7-930

i5-6400
Test#1 (Integers)
28092
41474 (47.63%)
Test#2 (FP)
21624
65462 (202.73%)
Test#3 (Generic, ZIP)
14826
16202 (9.28%)
Test#1 (Memory)
4851
7660 (57.91%)
TOTAL
69393
130798 (88.49%)

Performance/W
i7-930
i5-6400
Test#1 (Integers)
216 points/W
638 points/W
Test#2 (FP)
166 points/W
1007 points/W
Test#3 (Generic, ZIP)
114 points/W
249 points/W
Test#1 (Memory)
37 points/W
118 points/W
TOTAL
534 points/W
2012 points/W

Performance/GHz
i7-930
i5-6400
Test#1 (Integers)
2372 points/GHz
3458 points/GHz
Test#2 (FP)
1571 points/GHz
4955 points/GHz
Test#3 (Generic, ZIP)
933 points/GHz
1256 points/GHz
Test#1 (Memory)
855 points/GHz
993 points/GHz
TOTAL
5732 points/GHz
10662 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. 3.7.8