AMD Athlon II X2 255 - ADX255OCK23GM / ADX255OCGMBOX

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AMD Athlon II X2 255 specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	AMD Athlon II X2
Model number ?	255
CPU part numbers	ADX255OCK23GM is an OEM/tray microprocessor ADX255OCGMBOX is a boxed microprocessor
Stepping codes	AAEGC AE NAEGC AE WAEGC AE
Frequency ?	3100 MHz
Bus speed ?	533 MHz Memory controller One 2000 MHz 16-bit HyperTransport link
Clock multiplier ?	15.5
Package	938-pin organic micro-PGA
AMD Package number	30412
Sockets	Socket AM2+ Socket AM3

Architecture / Microarchitecture
Microarchitecture	K10
Processor core ?	Regor
Core stepping ?	C3
CPUID	100F63
Manufacturing process	0.045 micron 234 million transistors
Die size	117.5mm²
Data width	64 bit
The number of cores	2
The number of threads	2
Floating Point Unit	Integrated
Level 1 cache size ?	2 x 64 KB instruction caches 2 x 64 KB data caches
Level 2 cache size ?	2 x 1 MB caches
Level 3 cache size	None
Cache latency	3 (L1 cache) 15 (L2 cache)
Multiprocessing	Uniprocessor
Features	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 ?
Low power features	Cool'n'Quiet 3.0 CoolCore Technology ? Dual Dynamic Power Management ? Core C1 and C1E states Package S0, S1, S3, S4 and S5 states
On-chip peripherals	Integrated 144-bit DDR2/DDR3 Memory Controller HyperTransport 3 technology

Electrical / Thermal parameters
V core ?	0.85V - 1.4V
Maximum operating temperature ?	55°C - 74°C
Thermal Design Power ?	65 Watt

CPUs, related to AMD Athlon II X2 255 (rev. C3)

Model Cores /
Threads Freq. L2
cache L3
cache TDP Features Price

AMD Athlon II X2 family, Socket AM2+ / Socket AM3

   Athlon II X2 245e 2 / 2 2.9 GHz 2 MB 45 Watt $62

   Athlon II X2 250 (rev. C2) 2 / 2 3 GHz 2 MB 65 Watt $47

   Athlon II X2 250 (rev. C3) 2 / 2 3 GHz 2 MB 65 Watt

   Athlon II X2 250e 2 / 2 3 GHz 2 MB 45 Watt $69

   Athlon II X2 B24 (rev. C2) 2 / 2 3 GHz 2 MB 65 Watt

   Athlon II X2 B24 (rev. C3) 2 / 2 3 GHz 2 MB 65 Watt

   Athlon II X2 255 (rev. C2) 2 / 2 3.1 GHz 2 MB 65 Watt $47

   Athlon II X2 255 (rev. C3) 2 / 2 3.1 GHz 2 MB 65 Watt

   Athlon II X2 260 (rev. C3) 2 / 2 3.2 GHz 2 MB 65 Watt $48

   Athlon II X2 B26 2 / 2 3.2 GHz 2 MB 65 Watt

   Athlon II X2 265 2 / 2 3.3 GHz 2 MB 65 Watt $48

   Athlon II X2 270 2 / 2 3.4 GHz 2 MB 65 Watt

   Athlon II X2 B28 2 / 2 3.4 GHz 2 MB 65 Watt

   Athlon II X2 280 2 / 2 3.6 GHz 2 MB 65 Watt $49

   Athlon II X2 B30 2 / 2 3.6 GHz 2 MB 65 Watt

AMD Athlon II X2 family, K10 micro-architecture, Other sockets

   Athlon II X2 221 2 / 2 2.8 GHz 1 MB 65 Watt

Other families, K10 micro-architecture, Socket AM2+ / Socket AM3

   Athlon II 170u 1 / 1 2 GHz 1 MB 20 Watt

   Sempron 150 1 / 1 2.9 GHz 1 MB 45 Watt

   Athlon X2 5200+ (0.045 micron) 2 / 2 2.3 GHz 1 MB 65 Watt

   Sempron X2 190 2 / 2 2.5 GHz 1 MB 45 Watt

   Phenom II X2 570 BE 2 / 2 3.5 GHz 1 MB 6 MB 80 Watt Unlock

   Phenom II X3 B77 3 / 3 3.2 GHz 1.5 MB 6 MB 95 Watt

   Athlon II X3 460 3 / 3 3.4 GHz 1.5 MB 95 Watt $69

   Phenom II X4 980 4 / 4 3.7 GHz 2 MB 6 MB 125 Watt Unlock $163

• Highlighted numbers and features indicate whether specific processor performs better or worse than Athlon II X2 255 (rev. C3)

• Within each category, the CPUs are sorted from slower (at the top) to faster (at the bottom)

• The 'Price' column shows official AMD prices as of Apr 29, 2013. Prices for obsolete and tray-only processors are not provided.

• List of related CPUs is not complete.

• Features abbreviations:

Unlock - Unlocked multiplier

FAQ

Q: I have an AMD Athlon II X2 255 CPU. Is it possible to upgrade it?

A: Probably yes. CPU compatibility is determined by your motherboard. Please check CPU-Upgrade.com website for CPU support list for your board.

AMD Athlon II X2 255 Overclocking

Sorry, overclocking information is not available at this time.

Pictures (3)



2010-04-06 10:35:15 Posted by: gshv


Athlon II X2 255 (C3 core revision)
2010-04-06 10:36:01 Posted by: gshv
Stepping code AAEGC AE


2012-12-15 18:38:09 Posted by: gshv
CPU-Z screenshot

News

AMD drops prices of Athlon II and A-Series processors

Nov 06, 2012: Last month DigiTimes reported on upcoming price reductions of older generation of AMD APUs. According to their sources, AMD was going to reduce prices of socket FM1 processors by as much as 35%. Yesterday AMD updated their official price list, and posted new prices of A-Series microprocessors, however the cuts were not as big as expected.

More AMD Athlon II CPUs with C3 core revisions

Jul 18, 2010: Yesterday AMD published specifications of several Athlon II X2 and X3 microprocessors with C3 core revision. The specs include three Athlon II processors, that appeared previously in various motherboard CPU support lists, but it was not clear whether they were officially launched or not.

Details on AMD Athlon II X2 processors with C3 revision

Jun 04, 2010: First, the good news. Not only the lately released Athlon II microprocessors are available for sale now, but boxed versions of older Athlon II X3 and Athlon II X4 CPUs with C3 core revision have finally made it into stores. NewEgg currently sells three older models with C3 core...

Athlon II X2 benchmarks

May 03, 2010: A few weeks ago we acquired a lot of Athlon II processors with C3 core revision. Although we posted pictures and individual benchmarks to Athlon II CPU pages, and added the results to our benchmark database more than a week ago, we decided to provide benchmarks in more readable format, i.e. as a review.

Upcoming Athlon II C3-revision CPUs - now with pictures

Apr 02, 2010: We recently posted information on nine upcoming Athlon II microprocessors with C3 core revision. We now have all of these processors ready for benchmarking, and, since benchmark results will be ready only next week, we decided to show some Athlon II Pictures for now.

Athlon II C3-revision CPUs added

Mar 28, 2010: We posted specifications for dual-, triple- and quad-core Athlon II processors with newer C3 core revision.

Benchmarks

Benchmark tools

Compare AMD 255 (rev. C3) benchmark results with all tested CPUs from one of the following families:
To compare this Athlon II X2 CPU with any tested processor please proceed to
For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Athlon II X2 CPUs and the fastest AMD and Intel x86 chips, please visit AMD Athlon II X2 255 (rev. C3) benchmarks page.

AMD 255 (rev. C3) benchmarks

The graphs below show up to 10 processors with aproximately the same level of performance in different types of applications. All processors were tested at nominal frequency (not overclocked), with stock heatsink and default BIOS settings. To see how the 255 (rev. C3) compares to other CPUs please see benchmark tools section above.

Benchmarked processor

CPU ID: 0F63h

CPU vendor string: AuthenticAMD

CPU name string: AMD Athlon(tm) II X2 255 Processor

Integer performance

Part number Result

Intel Core 2 Duo E6700 ?

105.2%

Intel Core 2 Duo E6750 ?

105.2%

AMD Athlon II X2 260 (rev. C3) ?

103.2%

AMD Phenom II X2 555 BE (rev. C3) ?

103.2%

Intel Pentium E5300 ?

103%

AMD Athlon II X2 255 (rev. C3) ?

100%

AMD Phenom II X2 550 BE (rev. C2) ?

100%

AMD Athlon II X2 255 (rev. C2) ?

100%

AMD Phenom II X2 550 (rev. C3) ?

100%

Intel Pentium E5200 ?

99.1%

Intel Core 2 Duo E7200 ?

98.1%

Floating Point performance

Part number Result

Intel Pentium E6700 ?

101.1%

Intel Pentium G645 ?

100.4%

Intel Pentium G850 ?

100.3%

AMD Phenom II X2 550 (rev. C3) ?

100.2%

AMD Phenom II X2 550 BE (rev. C2) ?

100.1%

AMD Athlon II X2 255 (rev. C3) ?

100%

AMD Athlon II X2 255 (rev. C2) ?

99.9%

Intel Core 2 Duo E8500 ?

99.8%

Intel Pentium E6600 ?

97.3%

Intel Core 2 Duo E7600 ?

97%

AMD Phenom II X2 545 (rev. C2) ?

96.9%

MMX / SSE / SSE2 performance

Part number Result

AMD Athlon II X3 405e (rev. C3) ?

102%

AMD Phenom II X2 550 (rev. C3) ?

100.7%

AMD Phenom II X2 550 BE (rev. C2) ?

100.6%

Intel Pentium G620 ?

100.5%

Intel Pentium E5400 ?

100.5%

AMD Athlon II X2 255 (rev. C3) ?

100%

Intel Core 2 Duo E8200 ?

100%

AMD Athlon II X2 255 (rev. C2) ?

99.9%

AMD Athlon II X3 400e ?

97.6%

AMD Phenom II X2 545 (rev. C2) ?

97.5%

Intel Pentium E5300 ?

96.9%

Memory-intensive program performance

Part number Result

Intel Core 2 Duo E7200 ?

101%

AMD Athlon II X4 615e ?

100.8%

AMD Athlon II X2 260 (rev. C3) ?

100.7%

AMD Athlon II X2 255 (rev. C2) ?

100.3%

Intel Core 2 Duo E8300 ?

100%

AMD Athlon II X2 255 (rev. C3) ?

100%

Intel Pentium E6700 ?

99.7%

AMD A4-3400 ?

98.9%

AMD Athlon II X4 610e ?

98.5%

AMD Athlon II X2 250 (rev. C3) ?

98.4%

AMD A4-3400 (HX) ?

98.3%

CPU ID (3)

CPUID Tools

Our CPUID database contains 3 records for this microprocessor. See all submitted records.
Use our CPU identification tool to check features of your CPU.

CPUID features of Athlon II X2 255

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 Athlon II X2 255 CPU.

Manufacturer:	AMD
CPU Family:	Athlon II X2
Model Number:	255
Frequency:	3100 MHz

Part number:	ADX255OCK23GM
Stepping Code:
Comment:
Submitted by:

General information
Vendor:	AuthenticAMD
Processor name (BIOS):	AMD Athlon(tm) II X2 255 Processor
Cores:	2
Logical processors:	2
Processor type:	Original OEM Processor
Core stepping:	DA-C3
CPUID signature:	100F63
Family:	16 (010h)
Model:	6 (06h)
Stepping:	3 (03h)

Cache: L1 data L1 instruction L2

Size: 2 x 64 KB 2 x 64 KB 2 x 1 MB

Associativity: 2-way set
associative 2-way set
associative 16-way set
associative

Line size: 64 bytes 64 bytes 64 bytes

Lines per tag: 1 1 1

Instruction set extensions Additional instructions

MMX Advanced Bit manipulation

AMD extensions to MMX CLFLUSH

3DNow! CMOV

Extensions to 3DNow! CMPXCHG16B

SSE CMPXCHG8B

SSE2 FXSAVE/FXRSTORE

SSE3 MONITOR/MWAIT

SSE4A POPCNT

PREFETCH/PREFETCHW

RDTSCP

SKINIT / STGI support

SYSCALL/SYSRET

SYSENTER/SYSEXIT

Major features Other 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

PowerNow! / Cool'n'Quiet Advanced programmable interrupt controller

Core multi-processing legacy mode

Debugging extensions

Extended APIC space

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

THERMTRIP

TSC rate is ensured to be invariant across all states

Temperature sensor

Time stamp counter

Virtual 8086-mode enhancements

Watchdog timer support

Comments (0)

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Last modified: 14 May 2013