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Core i7-3770K vs FX 8320


Description
The i7-3770K is based on Ivy Bridge architecture while the 8320 is based on Piledriver.

Using the multithread performance as a reference, the i7-3770K gets a score of 133.9 k points while the 8320 gets 103.2 k points.

Summarizing, the i7-3770K is 1.3 times faster than the 8320. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306a9
600f20
Core
Ivy Bridge
Vishera
Architecture
Base frecuency
3.5 GHz
3.5 GHz
Boost frecuency
3.9 GHz
4 GHz
Socket
LGA 1155
Socket AM3+
Cores/Threads
4/8
8/8
TDP
77 W
125 W
Cache L1 (d+i)
4x62+4x32 kB
kB
Cache L2
4x256 kB
4x2048 kB
Cache L3
8192 kB
8192 kB
Date
April 2012
October 2012
Mean monothread perf.
36.19k points
16.68k points
Mean multithread perf.
133.88k points
103.21k 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
i7-3770K
8320
Test#1 (Integers)
12.99k
5.35k (x0.41)
Test#2 (FP)
12.42k
5.14k (x0.41)
Test#3 (Generic, ZIP)
5.04k
2.15k (x0.43)
Test#1 (Memory)
5.73k
4.04k (x0.7)
TOTAL
36.19k
16.68k (x0.46)

Multithread

i7-3770K

8320
Test#1 (Integers)
50.36k
36.79k (x0.73)
Test#2 (FP)
55.16k
40.2k (x0.73)
Test#3 (Generic, ZIP)
23.31k
19.57k (x0.84)
Test#1 (Memory)
5.05k
6.66k (x1.32)
TOTAL
133.88k
103.21k (x0.77)

Performance/W
i7-3770K
8320
Test#1 (Integers)
654 points/W
294 points/W
Test#2 (FP)
716 points/W
322 points/W
Test#3 (Generic, ZIP)
303 points/W
157 points/W
Test#1 (Memory)
66 points/W
53 points/W
TOTAL
1739 points/W
826 points/W

Performance/GHz
i7-3770K
8320
Test#1 (Integers)
3331 points/GHz
1339 points/GHz
Test#2 (FP)
3186 points/GHz
1285 points/GHz
Test#3 (Generic, ZIP)
1292 points/GHz
537 points/GHz
Test#1 (Memory)
1470 points/GHz
1010 points/GHz
TOTAL
9280 points/GHz
4171 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