AMD Phenom II X6 1055T 

Released May, 2010
  • 2.8 GHz
  • Hexa core
3.7 Out of 10

Cranking up the overclock to 4.004GHz we can knock off~89 seconds or ~30% off of the overall time.
by Legit Reviews (Sep, 2010)
Despite the mulit-threaded performance of the Intel Core I7 930 the AMD Phenom II X6 1055T was nearly 12 seconds faster calculating 1024m and .4 seconds faster at 32m.
by Legit Reviews (Sep, 2010)

CPUBoss Review Our evaluation of the AMD Phenom II X6 1055T among desktop CPUs (over 75W)


Benchmark performance using all cores

Phenom II X6 1055T
FX 6300
PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

Phenom II X6 1055T
FX 6300
PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Phenom II X6 1055T
FX 6300
Fire Strike

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

Phenom II X6 1055T
FX 6300
CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Phenom II X6 1055T
FX 6300
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


Are you paying a premium for performance?

Phenom II X6 1055T
FX 6300
Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more


CPUBoss Score

Combination of all six facets

Phenom II X6 1055T
FX 6300

Benchmarks Real world tests of the AMD Phenom II X6 1055T

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Phenom II X6 1055T
FX 6300

GeekBench 3 (Single core) Data courtesy Primate Labs

Phenom II X6 1055T
FX 6300

GeekBench 3 (AES single core) Data courtesy Primate Labs

Phenom II X6 1055T
133,900 MB/s
Core i5 2500K
2,530,000 MB/s
FX 6300
2,290,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Phenom II X6 1055T
Core i5 2500K
FX 6300

GeekBench (64-bit) Data courtesy Primate Labs

Phenom II X6 1055T
Core i5 2500K
FX 6300


Phenom II X6 1055T
Core i5 2500K
FX 6300

PassMark Data courtesy Passmark

Phenom II X6 1055T
FX 6300

PassMark (Single Core)

Phenom II X6 1055T
FX 6300

Reviews Word on the street for the AMD Phenom II X6 1055T

And yet the smaller quad-core 965 is rated at 140 Watts while this new six-core 1055T is a 125 Watt chip.

24/7 OC 3.92ghz@1.42v Thing really eats encoding and CS5 and other than competing with Intels better models of the same age proc can post some really nice scores.


9.4 Out of 10

What People Are Saying Give it to me straight

Socket Type

If the CPU finds itself in a condition where 3 or more cores are idle, the processor can use Turbo CORE technology to boost the active 3 cores to 3.3GHz improving performance on less heavily-threaded workloads.
by Legit Reviews (Sep, 2010)
After settling my overclock I was folding bigadv units, normally reserved for 8 core/thread+ chips and getting the units in with in the deadline.
by Blueduck3285 (Nov, 2011)
The Corsair Dominator memory modules were run in double-channel mode at 1600MHz with 8,8,8,24 timings.
by Legit Reviews (Sep, 2010)


The whole process takes 40-90 seconds, after which we has a rock solid overclock of 658MHz with a fsb of 247MHz!
by Legit Reviews (Sep, 2010)
Ive had a Cooler Master V8 which cooled it to 11c and now have a Corsair H100 which cools it to mid teens and never gets above 43c-for anything.
by cravinmild (Nov, 2011)
Our 1055T sample will hit 3.65GHz with an air cooler, a respectable result given the stock 2.8GHz frequency.
by Tech Radar (Sep, 2010)


Multi-core performance shows that the true six cores of the AMD Phenom II X6 1055T was superior to the four cores plus the four additional threads of the Intel Core I7 930.
by Legit Reviews (Sep, 2010)
Core for core, Intel's processors are much more powerful.
by Tech Radar (Sep, 2010)
Remember when AMD launched its first quad-core processor in 2007?
by Tech Radar (Sep, 2010)


Benchmark Results: The AMD Phenom II X6 1055T was able to out perform all of the processors including the Intel Core I7 930 in all of the multi-media tests.
by Legit Reviews (Sep, 2010)
Benchmark Results: When it comes to wPrime the number of cores is king.
by Legit Reviews (Sep, 2010)
It is also worth noting that AMD has always been a leader in price to performance ratios.
by Legit Reviews (Sep, 2010)


All in all, this chip has handled a year of abuse, folding, gaming, and everyday use for over a year now and keeps on like it was brand new.
by Blueduck3285 (Nov, 2011)
I was looking to build a new gaming rig.
by Blueduck3285 (Nov, 2011)
This is the reason that it performed the best in this game test as the game title is clearly optimized to run on six physical cores.
by Legit Reviews (Sep, 2010)

Specifications Full list of technical specs


Clock speed 2.8 GHz
Turbo clock speed 3.3 GHz
Cores Hexa core
Socket type AM3
Is unlocked No


Has a NX bit Yes
Has virtualization support Yes
Instruction set extensions
  1. MMX
  2. SSE
  3. SSE2
  4. 3DNow!
  5. SSE4a
  6. SSE3
Supports dynamic frequency scaling Yes

integrated graphics

GPU None

memory controller

Memory controller Built-in
Memory type
  1. DDR3
  2. DDR2
Channels Dual Channel
Maximum bandwidth 12,800 MB/s


Architecture x86-64
Threads 6 threads
L2 cache 3 MB
L2 cache per core 0.5 MB/core
L3 cache 6 MB
L3 cache per core 1 MB/core
Manufacture process 45 nm
Transistor count 904,000,000
Max CPUs 1
Clock multiplier 14
Voltage range 1.13 - 1.4V
Operating temperature Unknown - 62°C


Overclock popularity 227
Overclock review score 4.5
Overclocked clock speed 3.95 GHz
Overclocked clock speed (Water) 4.02 GHz
PassMark (Overclocked) 2,085.8
Overclocked clock speed (Air) 3.95 GHz

power consumption

TDP 125W
Annual home energy cost 54.4 $/year
Annual commercial energy cost 165.56 $/year
Performance per watt 0.94 pt/W
Idle power consumption 81W
Peak power consumption 189W


Architecture HyperTransport 3.0
Data rate 8,000 MB/s
Transfer rate 4,000 MT/s
Clock speed 2,000 MHz
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