CPUBoss Review Our evaluation of 1090T vs 840 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 AMD Phenom II X6 Black 1090T

Reasons to consider the
AMD Phenom II X6 Black 1090T

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Front view of AMD Phenom II X4 840

Reasons to consider the
AMD Phenom II X4 840

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CPUBoss is not aware of any important advantages of the Phenom II X4 840 vs the Phenom II X6 Black 1090T.

Benchmarks Real world tests of Phenom II X6 Black 1090T vs X4 840

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom II X4 840
129,500 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Reviews Word on the street

Specifications Full list of technical specs

summary

Phenom II X6 Black 1090T  vs
X4 840 
Clock speed 3.2 GHz 3.2 GHz
Turbo clock speed 3.6 GHz 0 GHz
Cores Hexa core Quad core
Socket type
AM3
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
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

bus

Clock speed 2,000 MHz 2,000 MHz

details

Phenom II X6 Black 1090T  vs
X4 840 
Architecture x86-64 x86-64
Threads 6 4
L2 cache 3 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 6 MB 0 MB
L3 cache per core 1 MB/core 0 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1
Voltage range 1.13 - 1.4V 0.85 - 1.4V
Operating temperature Unknown - 62°C Unknown - 71°C

overclocking

Overclock popularity 54 37
Overclock review score 4 5
Overclocked clock speed 4.08 GHz 3.94 GHz
Overclocked clock speed (Water) 4.1 GHz 3.2 GHz
PassMark (Overclocked) 3,468.2 1,971.6
Overclocked clock speed (Air) 4.08 GHz 3.94 GHz

power consumption

TDP 125W 95W
Annual home energy cost 52.52 $/year 22.89 $/year
Annual commercial energy cost 146.29 $/year 83.22 $/year
Performance per watt 1 pt/W 1.87 pt/W
Typical power consumption N/A 77.19W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR2-1066
DDR3
DDR2
AMD Phenom II X6 Black 1090T
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AMD Phenom II X4 840
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