CPUBoss Review Our evaluation of 3970X vs 8350 among desktop CPUs (over 75W)

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Core i7 3970X

Reasons to consider the
Intel Core i7 3970X

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Significantly more l3 cache 15 MB vs 8 MB Around 90% more l3 cache; more data can be stored in the l3 cache for quick access later
Much better cinebench r10 32Bit 1-core score 6,479 vs 4,338 Around 50% better cinebench r10 32Bit 1-core score
Much lower typical power consumption 121.88W vs 159.66W Around 25% lower typical power consumption
Much better geekbench 3 Multi-Core score 19,564 vs 11,483 More than 70% better geekbench 3 Multi-Core score
More threads 12 vs 8 4 more threads
Much more l3 cache per core 2.5 MB/core vs 1 MB/core 2.5x more l3 cache per core
Much better cinebench r10 32Bit score 34,888 vs 22,674 Around 55% better cinebench r10 32Bit score
Much lower annual home energy cost 36.14 $/year vs 56.1 $/year More than 35% lower annual home energy cost
Higher Maximum operating temperature 66.8 °C vs 61 °C Around 10% higher Maximum operating temperature
Better performance per watt 8.48 pt/W vs 5.84 pt/W More than 45% better performance per watt
Much lower annual commercial energy cost 131.4 $/year vs 159.62 $/year Around 20% lower annual commercial energy cost
Front view of AMD FX 8350

Reasons to consider the
AMD FX 8350

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 4 GHz vs 3.5 GHz Around 15% higher clock speed
Higher turbo clock speed 4.2 GHz vs 4 GHz More than 5% higher turbo clock speed
Much more l2 cache per core 1 MB/core vs 0.33 MB/core More than 3x more l2 cache per core
More cores 8 vs 6 2 more cores; run more applications at once
Significantly better performance per dollar 8.87 pt/$ vs 1.16 pt/$ Around 7.8x better performance per dollar
Much better overclocked clock speed (Water) 8.79 GHz vs 4.43 GHz Around 2x better overclocked clock speed (Water)
Better overclocked clock speed (Air) 4.73 GHz vs 4.6 GHz Around 5% better overclocked clock speed (Air)

Benchmarks Real world tests of Core i7 3970X vs FX 8350

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i7 3970X
19,564
FX 8350
11,483

GeekBench 3 (Single core) Data courtesy Primate Labs

FX 8350
2,193

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i7 3970X
2,690,000 MB/s
FX 8350
2,470,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i7 3970X
19,974
FX 8350
10,956

GeekBench (64-bit) Data courtesy Primate Labs

Core i7 3970X
20,836
FX 8350
12,126

GeekBench

Core i7 3970X
21,346
FX 8350
12,796

PassMark Data courtesy Passmark

Core i7 3970X
12,923
FX 8350
9,134

PassMark (Single Core)

FX 8350
1,525

Reviews Word on the street

Core i7 3970X  vs FX 8350 

7.0
8.0
Maybe not the top-end eight-core FX-8150, but the great value and overclocking capabilities of the six-core FX-6200 made it a tantalising prospect for anyone on a budget looking to put together a gaming rig.
FX 8350

Specifications Full list of technical specs

summary

Core i7 3970X  vs
FX 8350 
Clock speed 3.5 GHz 4 GHz
Turbo clock speed 4 GHz 4.2 GHz
Cores Hexa core Octa core
Socket type
LGA 2011
AM3+
Is unlocked Yes 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
Supports dynamic frequency scaling Yes Yes

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

details

Core i7 3970X  vs
FX 8350 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 8 MB
L2 cache per core 0.33 MB/core 1 MB/core
L3 cache 15 MB 8 MB
L3 cache per core 2.5 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 35 21
Voltage range 0.6 - 1.35V 0.82 - 1.45V
Operating temperature Unknown - 66.8°C Unknown - 61°C

overclocking

Overclock popularity 28 709
Overclock review score 0.2 0.95
Overclocked clock speed 4.6 GHz 4.73 GHz
Overclocked clock speed (Water) 4.43 GHz 8.79 GHz
PassMark (Overclocked) 7,133.8 10,147
Overclocked clock speed (Air) 4.6 GHz 4.73 GHz

power consumption

TDP 150W 125W
Annual home energy cost 36.14 $/year 56.1 $/year
Annual commercial energy cost 131.4 $/year 159.62 $/year
Performance per watt 8.48 pt/W 5.84 pt/W
Typical power consumption 121.88W 159.66W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1866
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Channels Quad Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 51,200 MB/s 29,866.66 MB/s
Intel Core i7 3970X
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AMD FX 8350
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