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Although pre-launch news stories speculated about possible launch of up to 5 six-core processors, 1035T, 1055T, 1075T and 1090T, only two of them were introduced on April 27 - 1055T with 125W Thermal Design Power (TDP) and 1090T Black Edition. Around May 10, AMD posted information on the third member of six-core Phenom II family - model 1055T with 95 Watt TDP. As stated by AMD website, the processor will be offered in OEM and Boxed versions. It's expected that 1055T 95 Watt version will have the same price as 125 Watt version.

Phenom II X6 1055T with thermal Design Power 95 Watt is the third member of six-core Phenom II family. The processor is built on K10 micro-architecture, and has six cores, integrated memory controller and shared 6MB level 3 cache on a single die. Each core in 1055T model has its own 128 KB level 1 and 256 KB level 2 cache. Integrated memory controller works with DDR2 and DDR3 memory, and to communicate with on-board and peripheral devices the CPU uses one HyperTransport 3 link. The 1055T runs at 2.8 GHz, and incorporates standard Phenom II features - 64-bit instructions, SIMD extensions up to SSE3, Enhanced Virus Protection, and Virtualization. New feature in this processor is Turbo Core. This feature temporary increases core frequency of up to three cores when remaining cores are not utilized. The processor is packaged in 938-pin micro-PGA package, which is compatible with socket AM3 motherboards, and, with appropriate BIOS support, socket AM2+ motherboards.

AMD Phenom II X6 1055T specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyAMD Phenom II X6
Model number  ? 1055T
CPU part numbers
  • HDT55TWFK6DGR is an OEM/tray microprocessor
  • HDT55TWFGRBOX is a boxed microprocessor
Stepping codesACBBE CB   CCBBE CB
Frequency  ? 2800 MHz
Turbo frequency3300 MHz (3 cores or less)
Bus speed  ? 667 MHz Memory controller
One 2000 MHz 16-bit HyperTransport link
Clock multiplier  ? 14
Package938-pin organic micro-PGA
SocketSocket AM3
Weight1.3oz / 38.1g
Introduction dateMay 2010
Architecture / Microarchitecture
Processor core  ? Thuban
Core stepping  ? PH-E0
Manufacturing process0.045 micron SOI
Die size346mm2
Data width64 bit
The number of cores6
The number of threads6
Floating Point UnitIntegrated
Level 1 cache size  ? 6 x 64 KB instruction caches
6 x 64 KB data caches
Level 2 cache size  ? 6 x 512 KB caches
Level 3 cache size6 MB shared cache
Cache latency3 (L1 cache)
13 (L2 cache)
48 (L3 cache)
  • MMX instructions
  • 3DNow! technology
  • SSE / Streaming SIMD Extensions
  • SSE2 / Streaming SIMD Extensions 2
  • SSE3 / Streaming SIMD Extensions 3
  • SSE4a  ? 
  • ABM / Advanced Bit Manipulation  ? 
  • AMD64 / AMD 64-bit technology  ? 
  • AMD-V / AMD Virtualization technology
  • EVP / Enhanced Virus Protection  ? 
  • Turbo Core technology
Low power featuresCool'n'Quiet 3.0
Integrated peripherals / components
Integrated graphicsNone
Memory controller
  • The number of controllers: 1
    Memory channels: 2
    Channel width (bits): 72
    Supported memory: DDR2-1066, DDR3-1333
    DIMMs per channel: up to 2
    Maximum memory bandwidth (GB/s): 21.3
Other peripheralsHyperTransport 3.x technology
Electrical / Thermal parameters
V core  ? 1.075V - 1.375V (at rated frequency)
1.225V - 1.425V (Turbo Core mode)
0.975V - 1.175V (Minimum performance state)
V NorthBridge1.05V - 1.175V
Maximum operating temperature  ? 55°C - 71°C
Thermal Design Power  ? 95 Watt
Notes on AMD Phenom II X6 1055T
  • On socket AM2+/AM3 platforms in the minimum performance state the processor runs at 800 MHz core voltage and has TDP 46.3 Watt

Detailed side-by-side comparison

For detailed comparision of the AMD 1055T and any other other chip from our CPU database type in a chip name and/or its partial specs:

You can specify any of the following: manufacturer name, family name, model number, part number, core name, socket name, operating frequency, bus speed, and the last level cache. Here are examples of searches: 1055T, HDT55TWFK6DGR, AMD Phenom II X6 2.8GHz, Thuban Socket AM3


Q: I have an AMD Phenom II X6 1055T processor. Is it possible to upgrade it?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see website for CPU support list for your board.

Phenom II X6 1055T Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

Phenom II X6 1055T 95W in US, at last
Aug 09, 2010: It seems that US stores were the last ones to get Phenom II X6 1055T with 95 Watt TDP. At the end of June, this model appeared in Japan. One month later, there were reports of the 1055T 95W processors selling in European stores. Finally, this six-core Phenom II surfaced in US store. TigerDirect currently has OEM version of this model for $189.99.

AMD Phenom II X6 1055T 95W sold in Japan
Jun 30, 2010: First two Phenom II X6 microprocessors with model numbers 1090T and 1055T were introduced at the end of April of this year. The 1090T and 1055T processors were clocked at 3.2 GHz and 2.8 GHz respectively, and they both had 125 Watt Thermal Design Power.

CPU Support for recently launched CPUs
May 20, 2010: We conducted a quick research on how well motherboards manufacturers, ASRock, ASUS, Biostar, ECS, Gigabyte and MSI, provide CPU support for recently released microprocessors. For this research we used CPUs launched in April: Phenom II X6, Core i5-680 and Pentium E5500.

Phenom II X6 1035T shipped in Dell desktop computers
May 17, 2010: Last week Dell announced Studio XPS 7100 high-performance multimedia computer. We do not publish announcements of new computers, unless the computers include hard-to-find or previously unreleased processors. In this case, the processor is a Phenom II X6 1035T, which release was believed to be pushed back into the third quarter.

AMD lists 95 Watt version of Phenom II X6 1055T
May 10, 2010: Before official launch of Athlon II X6 family, there were rumors that up to 4 different six-core microprocessors will be launched in April or May - 1035T, 1055T (95 and 125 Watt), 1075T and 1090T.

Compare AMD 1055T (95W) benchmark results with all tested CPUs from one of the following families:

To compare this Phenom II X6 CPU with any tested processor please proceed to

For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Phenom II X6 CPUs and the fastest AMD and Intel x86 chips, please visit AMD Phenom II X6 1055T (95W) benchmarks page.

AMD 1055T Benchmarks

The graphs below show up to 10 microprocessors with approximately the same level of integer (CPU), floating-point (FPU), SIMD and memory performance. All processors were not overclocked, and were tested at a nominal frequency, with a stock heatsink and default BIOS settings. Click on the '?' mark next to each model name to see specifications of that model, and details of the test platform. To find out how the 1055T (95W) compares to other CPUs in specific benchmarks or in aggregate milti-threading performance please see benchmark tools section on the right.

Benchmarked processor

CPU vendor string:AuthenticAMD
CPU name string:AMD Phenom(tm) II X6 1055T Processor

Integer performance

Part number   Result
AMD Phenom II X6 1065T  ? 
AMD FX-8320  ? 
Intel Core i7-875K  ? 
Intel Core i7-870  ? 
Intel Core i7-2600S  ? 
AMD Phenom II X6 1055T (95W)  ? 
AMD Phenom II X6 1055T (125W)  ? 
Intel Core i7-940  ? 
AMD Phenom II X6 1045T  ? 
AMD FX-8140  ? 
Intel Core i7-860  ? 

Floating Point performance

Part number   Result
Intel Core i7-860  ? 
AMD Phenom II X6 1075T (non-BE)  ? 
Intel Core i7-920  ? 
AMD Phenom II X6 1065T  ? 
AMD Phenom II X6 1055T (125W)  ? 
AMD Phenom II X6 1055T (95W)  ? 
AMD Phenom II X6 1045T  ? 
AMD FX-8350  ? 
AMD Phenom II X6 1035T  ? 
AMD Phenom II X4 980  ? 
AMD Phenom II X4 975  ? 

MMX / SSE / SSE2 performance

Part number   Result
AMD Phenom II X6 1075T (non-BE)  ? 
AMD Phenom II X6 1065T  ? 
AMD FX-8140  ? 
AMD FX-8120 (95W)  ? 
AMD Phenom II X6 1055T (125W)  ? 
AMD Phenom II X6 1055T (95W)  ? 
AMD FX-8120  ? 
AMD FX-6350  ? 
AMD Phenom II X6 1045T  ? 
AMD FX-6200  ? 
AMD Phenom II X4 980  ? 

Memory-intensive program performance

Part number   Result
AMD Phenom II X6 1065T  ? 
AMD A8-5600K  ? 
AMD Phenom II X6 1055T (125W)  ? 
AMD A8-6500  ? 
AMD A8-6500B  ? 
AMD Phenom II X6 1055T (95W)  ? 
AMD A10-5700  ? 
AMD FX-6100  ? 
AMD Athlon X4 750K  ? 
AMD Phenom II X6 1045T  ? 
AMD Phenom II X4 840T  ? 

CPU ID information for the Phenom II X6 1055T

Our CPUID database contains 2 records for this microprocessor. See all submitted records.

Use our CPU identification tool to check features of your CPU.

NOTE: The CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the AMD Phenom II X6 1055T CPU.

CPU Family:Phenom II X6
Model Number:1055T
Frequency:2811 MHz
Part number:
Stepping Code:
Submitted by:
General information
Processor name (BIOS):AMD Phenom(tm) II X6 1055T Processor
Processor name (CWID):Phenom II(tm) X6 1055T
Logical processors:6
Processor type:Original OEM Processor
Core stepping:PH-E0
CPUID signature:100FA0
Family:16 (010h)
Model:10 (0Ah)
Stepping: 0 (00h)

Cache: L1 data L1 instruction L2 L3
Size: 6 x 64 KB 6 x 64 KB 6 x 512 KB 6 MB
Associativity: 2-way set
2-way set
16-way set
48-way set
Line size: 64 bytes 64 bytes 64 bytes 64 bytes
Lines per tag: 1 1 1 1
Instruction set extensionsAdditional instructions
MMX Advanced Bit manipulation
AMD extensions to MMX CLFLUSH
Extensions to 3DNow! CMPXCHG16B
  SKINIT/STGI support
Major featuresOther features
On-chip Floating Point Unit 1 GB large page support
64-bit / Intel 64 100MHz multiplier control
NX bit/XD-bit 128-bit SSE instructions
Secure Virtual Machine (Virtualization) 36-bit page-size extensions
Turbo Core Advanced programmable interrupt controller
PowerNow! / Cool'n'Quiet Core multi-processing legacy mode
  Debugging extensions
  Extended APIC space
  FXSAVE/FXRSTOR optimizations
  Hardware P-state control
  Hardware thermal control
  Instruction based sampling
  LAHF/SAHF support in 64-bit mode
  LBR virtualization
  LOCK MOV CR0 means MOV CR8
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Misaligned SSE mode
  Model-specific registers
  Nested page tables
  OS visible workaround
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  SVM lock
  Software thermal control
  Support for NRIP save
  TSC rate is ensured to be invariant across all states
  Temperature sensor
  Time stamp counter
  Virtual 8086-mode enhancements
  Watchdog timer support

CPUs, related to AMD Phenom II X6 1055T (95W)

Model Cores /
Frequency Turbo
TDP Features  
AMD Phenom II X6 family, Socket AM3
   Phenom II X6 1035T6 / 62.6 GHz3.1 GHz6 MB95W>
   Phenom II X6 1045T6 / 62.7 GHz3.2 GHz6 MB95W>
   Phenom II X6 1055T (95W)6 / 62.8 GHz3.3 GHz6 MB95W 
   Phenom II X6 1055T (125W)6 / 62.8 GHz3.3 GHz6 MB125W>
   Phenom II X6 1065T6 / 62.9 GHz3.4 GHz6 MB95W>
   Phenom II X6 1075T (non-BE)6 / 63 GHz3.5 GHz6 MB125W>
   Phenom II X6 1090T6 / 63.2 GHz3.6 GHz6 MB125WUnlock>
   Phenom II X6 1100T6 / 63.3 GHz3.7 GHz6 MB125WUnlock>
 • Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)
 • Background color of specs and features indicate whether they are better or worse than similar spec/feature of the Phenom II X6 1055T (95W)
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II X6 1055T (95W) (Javascript required).
 • Features abbreviations:
Unlock - Unlocked multiplier

Pictures (2)

Heatspreader shot
2010-06-18 13:42:27
Posted by: Anonymous

this is a picture of the Phenom II X6 1055T 95W version. enjoy ;-).

Note that it is not a retail chip
Heatspreader shot
2011-03-21 10:54:34
Posted by: Neon

Comments (5)

You're welcome to post suggestions, corrections, your own personal AMD Phenom II X6 1055T review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.


2010-05-17 07:36:58
Posted by: Martin

Is there a specific launch date for the 1055t 95 TDP CPU? cause i have to order a computer soon (next 2-3 weeks)and i couln`t find the described statement on the amd homepage

Thx for any help

Response: The processor is listed on I think at this time these parts are shipped only to OEMs. I don't know when the boxed 1055T 95W processors will start shipping.


2010-05-19 19:20:41
Posted by: Martin

Thx for your help, hope it`s not going to be that long till they release the boxed version. OEM is fine with me, as long as my local dealer can order OEM CPUs,i am using an diffrent cooler anyway.

I got mine :D

2010-06-15 15:26:32
Posted by: dragoon92

i got mine, but its more an ES than a retail CPU

AMD Phenom II X6 1055T - HDT55TWFK6DGR turkey release date

2010-09-02 10:53:30
Posted by: izzy

turkey release date get information that helps

release date info:???

urgent need

Response: Sorry, I don't have this information


2010-09-19 11:17:49
Posted by: Hexabit

When be in the Europe ?

Response: Sorry, I don't know this. We track online prices and availablity primarily in US
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