CPUBoss Review Our evaluation of 4340 vs 8320

Performance

Benchmark performance using all cores

PassMark, GeekBench (32-bit) and GeekBench (64-bit)

Single-core Performance

Individual core benchmark performance

PassMark (Single Core)

Overclocking

How much speed can you get out of the processor?

PassMark (Overclocked), Unlocked, Maximum Overclocked Clock Speed (Air) and 1 more

Value

Are you paying a premium for performance?

Performance Per Dollar

No winner declared

Too close to call

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Differences What are the advantages of each

Front view of Intel Core i3 4340

Reasons to consider the
Intel Core i3 4340

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 43.88W vs 101.56W 2.3x lower typical power consumption
Much more l3 cache per core 2 MB/core vs 1 MB/core 2x more l3 cache per core
Significantly better PassMark (Single core) score 2,074 vs 1,402 Around 50% better PassMark (Single core) score
Significantly better performance per watt 14.63 pt/W vs 6.39 pt/W More than 2.2x better performance per watt
Much lower annual commercial energy cost 47.3 $/year vs 109.5 $/year 2.3x lower annual commercial energy cost
Much lower annual home energy cost 13.01 $/year vs 30.11 $/year 2.3x lower annual home energy cost
Newer Jul, 2013 vs Oct, 2012 Release date 8 months later
Front view of AMD FX 8320

Reasons to consider the
AMD FX 8320

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Much more l2 cache 8 MB vs 0.5 MB 16x more l2 cache; more data can be stored in the l2 cache for quick access later
Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
More cores 8 vs 2 6 more cores; run more applications at once
More l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Much better PassMark (Overclocked) score 9,317 vs 4,161.4 Around 2.2x better PassMark (Overclocked) score
Better PassMark score 8,183 vs 5,277 More than 55% better PassMark score
Better overclocked clock speed (Air) 4.66 GHz vs 3.71 GHz More than 25% better overclocked clock speed (Air)
Better geekbench (32-bit) score 9,798 vs 6,710 More than 45% better geekbench (32-bit) score
Better performance per dollar 6.53 pt/$ vs 5.04 pt/$ Around 30% better performance per dollar
Significantly better overclocked clock speed (Water) 4.82 GHz vs 3.6 GHz Around 35% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i3 4340 vs FX 8320

GeekBench (32-bit) Data courtesy Primate Labs

Core i3 4340
6,710
FX 8320
9,798

GeekBench (64-bit) Data courtesy Primate Labs

Core i3 4340
7,453
FX 8320
10,594

GeekBench

Core i3 4340
7,453
FX 8320
11,631

PassMark Data courtesy PassMark

Core i3 4340
5,277
FX 8320
8,183

PassMark (Single Core) Data courtesy PassMark

Core i3 4340
2,074
FX 8320
1,402

Specifications Full list of technical specs

summary

Core i3 4340  vs
FX 8320 
Clock speed 3.6 GHz 3.5 GHz
Cores Dual core Octa core
Is unlocked No Yes

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
AVX 1.1
SSE2
F16C
MMX
SSE4
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
Supplemental SSE3
AES
TBM
AVX 2.0
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 54W 125W
Annual home energy cost 13.01 $/year 30.11 $/year
Annual commercial energy cost 47.3 $/year 109.5 $/year
Performance per watt 14.63 pt/W 6.39 pt/W
Typical power consumption 43.88W 101.56W

details

Core i3 4340  vs
FX 8320 
Architecture x86-64 x86-64
Threads 4 8
L2 cache 0.5 MB 8 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 4 MB 8 MB
L3 cache per core 2 MB/core 1 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.71 GHz 4.66 GHz
Overclocked clock speed (Water) 3.6 GHz 4.82 GHz
PassMark (Overclocked) 4,161.4 9,317
Overclocked clock speed (Air) 3.71 GHz 4.66 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 4600 N/A
Number of displays supported 3 N/A
GPU clock speed 350 MHz N/A
Turbo clock speed 1,150 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 29,866.66 MB/s
Intel Core i3 4340
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AMD FX 8320
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