CPUBoss Review Our evaluation of P840 vs 6300 among all CPUs

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

Sky Diver and Cloud Gate

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?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

6.5

CPUBoss Score

Combination of all six facets

Winner
AMD FX 6300 

CPUBoss recommends the AMD FX 6300  based on its performance and single-core performance.

See full details

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VS

Differences What are the advantages of each

Front view of AMD Phenom II P840

Reasons to consider the
AMD Phenom II P840

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Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Front view of AMD FX 6300

Reasons to consider the
AMD FX 6300

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Much more l2 cache 6 MB vs 2 MB 3x 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
Much higher clock speed 3.5 GHz vs 1.9 GHz Around 85% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.75 GHz vs 1.9 GHz More than 2.5x better overclocked clock speed (Air)
Much better performance per watt 9.84 pt/W vs 2.3 pt/W More than 4.2x better performance per watt
Significantly better PassMark (Single core) score 1,446 vs 625 More than 2.2x better PassMark (Single core) score
Significantly better PassMark score 6,444 vs 1,731 Around 3.8x better PassMark score
More cores 6 vs 3 Twice as many cores; run more applications at once
Significantly more l2 cache per core 1 MB/core vs 0.67 MB/core More than 50% more l2 cache per core
More threads 6 vs 3 Twice as many threads
Much better overclocked clock speed (Water) 4.82 GHz vs 1.9 GHz More than 2.5x better overclocked clock speed (Water)
Newer Oct, 2012 vs Oct, 2010 Release date over 2 years later

Benchmarks Real world tests of Phenom II P840 vs FX 6300

GeekBench 3 (Multi-core) Data courtesy Primate Labs

FX 6300
7,871

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom II P840
76,000 MB/s
FX 6300
2,290,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

FX 6300
7,447

GeekBench

FX 6300
9,503

PassMark Data courtesy Passmark

FX 6300
6,444

PassMark (Single Core)

Specifications Full list of technical specs

summary

Phenom II P840  vs
FX 6300 
Clock speed 1.9 GHz 3.5 GHz
Cores Tri core Hexa core
Socket type
S1
AM3+
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
XOP
AVX
SSE3
SSE
ABM
BMI1
CLMUL
AMD64
SSE4.1
FMA4
FMA3
SSE4.2
CVT16
AMD-V
3DNow!
Supplemental SSE3
AES
TBM
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 35W 95W
Annual home energy cost 8.43 $/year 22.89 $/year
Annual commercial energy cost 30.66 $/year 83.22 $/year
Performance per watt 2.3 pt/W 9.84 pt/W
Typical power consumption 28.44W 77.19W

details

Phenom II P840  vs
FX 6300 
Architecture x86-64 x86-64
Threads 3 6
L2 cache 2 MB 6 MB
L2 cache per core 0.67 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.9 GHz 4.75 GHz
Overclocked clock speed (Water) 1.9 GHz 4.82 GHz
Overclocked clock speed (Air) 1.9 GHz 4.75 GHz

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

bus

Clock speed 1,800 MHz 2,600 MHz
AMD Phenom II P840
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AMD FX 6300
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