AMD A8-Series A8-3820 - AD3820OJZ43GX / AD3820OJGXBOX

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Specifications

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AMD A8-3820 specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	AMD A8-Series
Model number ?	A8-3820
CPU part numbers	AD3820OJZ43GX is an OEM/tray microprocessor AD3820OJGXBOX is a boxed microprocessor
Frequency ?	2500 MHz
Turbo frequency	2800 MHz
Package	905-pin lidded micro-PGA package
Socket	Socket FM1
Size	1.57" x 1.57" / 4cm x 4cm
Weight	1.4oz / 39.5g
Introduction date	Dec 20, 2011 (announcement) January 2012 (availability)
Price at introduction	$129

Architecture / Microarchitecture
Microarchitecture	K10
Platform	Lynx
Processor core ?	Llano
Core stepping ?	B0
Manufacturing process	0.032 micron 1178 million transistors
Die size	228mm²
Data width	64 bit
The number of cores	4
The number of threads	4
Floating Point Unit	Integrated
Level 1 cache size ?	4 x 64 KB 2-way associative instruction caches 4 x 64 KB 2-way associative data caches
Level 2 cache size ?	4 x 1 MB 16-way associative cache
Multiprocessing	Uniprocessor
Features	MMX instructions 3DNow! technology SSE / Streaming SIMD Extensions SSE2 / Streaming SIMD Extensions 2 SSE3 / Streaming SIMD Extensions 3 SSE4a ? AMD64 / AMD 64-bit technology ? AMD-V / AMD Virtualization technology EVP / Enhanced Virus Protection ? Turbo Core technology
Low power features	PowerNow!

Integrated peripherals / components
Integrated graphics	GPU Type: Radeon HD 6550D Shader cores: 400 Base frequency (MHz): 600
Memory controller	The number of controllers: 1 Memory channels: 2 Supported memory: DDR3-1866
Other peripherals	PCI Express 2.0

Electrical / Thermal parameters
V core ?	0.45V - 1.4125V
Maximum operating temperature ?	70.5°C
Thermal Design Power ?	65 Watt

CPUs, related to AMD A8-3820

Model Cores /
Threads Freq. Turbo
freq. L2
cache TDP Features Price

AMD A8-Series family, Socket FM1

   A8-3800 4 / 4 2.4 GHz 2.7 GHz 4 MB 65 Watt TBT $91

   A8-3820 4 / 4 2.5 GHz 2.8 GHz 4 MB 65 Watt TBT $101

   A8-3850 4 / 4 2.9 GHz 4 MB 100 Watt TBT $87

   A8-3870K 4 / 4 3 GHz 4 MB 100 Watt TBT, Unlock $91

Other families, K10 micro-architecture, Socket FM1

   E2-3200 2 / 2 2.4 GHz 1 MB 65 Watt TBT

   Sempron X2 198 2 / 2 2.5 GHz 1 MB 65 Watt TBT

   A4-3400 (HX) 2 / 2 2.7 GHz 1 MB 65 Watt TBT $40

   A4-3400 2 / 2 2.7 GHz 1 MB 65 Watt TBT $40

   A4-3420 2 / 2 2.8 GHz 1 MB 65 Watt TBT

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

   A6-3650 4 / 4 2.6 GHz 4 MB 100 Watt TBT $77

   A6-3670K 4 / 4 2.7 GHz 4 MB 100 Watt TBT, Unlock $77

   Athlon II X4 651 4 / 4 3 GHz 4 MB 100 Watt TBT $76

   Athlon II X4 651K 4 / 4 3 GHz 4 MB 100 Watt TBT, Unlock

• Highlighted numbers and features indicate whether specific processor performs better or worse than A8-3820

• 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:

TBT - Dynamic Acceleration / Turbo Boost
Unlock - Unlocked multiplier

FAQ

Q: Can I upgrade my AMD A8-3820 CPU?

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

AMD A8-3820 Overclocking

Sorry, overclocking information is not available at this time.

Pictures (3)


AMD A8-3820 CPU pictures
2012-06-11 17:17:36 Posted by: gshv
Top view. The processor was manufactured in the middle of December 2011.


2012-06-11 17:17:59 Posted by: gshv
Bottom view


2012-11-14 00:59:42 Posted by: gshv
CPU-Z screenshot

News

AMD cuts prices of desktop CPUs

May 01, 2013: Earlier this week AMD announced new processors, expanding the line of high-end FX CPUs with quad-core FX-4350 and six-core FX-6350. It's not uncommon for AMD to lower prices when launching new products, and this time it was not an exception. Based on the latest official AMD price list, the company cut prices of ten A-Series and FX-Series chips by as much as 19%.

AMD cuts prices on A-Series APUs and FX CPUs

Apr 27, 2012: A few days after announcement of Intel's Ivy Bridge micro-architecture, many news sites reported that some European retailers slashed prices of FX-8150 processors by 15% - 20%, and suggested that AMD may have dropped the prices of other processors as well. Today AMD published new pricelist, confirming price drop for the FX-8150 model. The company also cut prices of six- and quad-core FX-Series chips, and for all microprocessors from A-Series.

AMD cuts prices of Phenom II and FX CPUs

Feb 28, 2012: As you may know, AMD yesterday launched two FX microprocessors, including company's first production CPU, operating faster than 4 GHz. New product releases are usually accompanied by price drops of older models, and it wasn't an exception this time. AMD cut prices on two FX-Series models, and reduced prices for most of Phenom IIs. They also added pricing for A-Series A6-3620 and A8-3820 Accelerated Processing units (APUs).

Bits and pieces: new 65W APUs spotted in HP PCs

Jan 10, 2012: On December 20 AMD announced five new socket FM1 desktop Accelerated Processing Units (APUs), including two unlocked A6-3670K and A8-3870K models with 100 Watt Thermal Design Power, and A4-3420, A6-3620 and A8-3820 SKUs with 65 Watt TDP. Unlocked CPUs were released about a week later, while three 65 Watt chips are still not available anywhere, even for pre-order. The processors did emerge in specifications of several Hewlett Packard PCs, which confirms our suspicion that the 3420, 3620 and 3820 APUs may be shipped only as OEM parts.

A6-3670K and A8-3870K surfaced in AMD product database

Dec 20, 2011: Last Friday Turkish site Donanimhaber published a few slides, one of which revealed release date and official prices of A6-3670K and A8-3870K Accelerated Processing Units (APUs). Two processors will be launched on December 26, priced at $115 for A6 model, and $135 for A8 model. AMD today added specifications of these processors to their product database, thus confirming imminent release of both CPUs.

Release date and prices of A6-3670K and A8-3870K CPUs

Dec 16, 2011: On December 5, we published preliminary details of AMDs Llano A6-3670K, A8-3820 and A8-3870K APUs. Turkish site Donanimhaber have now published the release dates and initial pricing for A8-3870K and A6-3670K, as well as revealing more information about the A8-3820.

Benchmarks

Benchmark tools

Compare AMD A8-3820 benchmark results with all tested CPUs from one of the following families:
To compare this A8-Series CPU with any tested processor please proceed to
For additional benchmarks, comparing multi-threaded performance of this microprocessor with other A8-Series CPUs and the fastest AMD and Intel x86 chips, please visit AMD A8-3820 benchmarks page.

AMD A8-3820 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 A8-3820 compares to other CPUs please see benchmark tools section above.

Benchmarked processor

CPU ID: 300F10

CPU vendor string: AuthenticAMD

CPU name string: AMD A8-3820 APU with Radeon(tm) HD Graphics

Integer performance

Part number Result

AMD A6-3670K ?

106.5%

AMD Phenom II X4 650T ?

103%

AMD Athlon II X4 631 ?

102.6%

AMD A6-3650 ?

102.6%

AMD FX-4170 ?

100.8%

AMD A8-3820 ?

100%

AMD Athlon II X4 2.6 GHz ZD260121K4216 ?

99.3%

AMD Phenom II X4 910e ?

99.1%

AMD Phenom II X4 910 ?

99.1%

AMD Athlon II X4 620 ?

99.1%

AMD Phenom II X4 810 ?

99.1%

Floating Point performance

Part number Result

AMD Phenom II X4 910 ?

100.2%

AMD Athlon II X4 620e ?

100.2%

AMD Phenom II X4 910e ?

100.2%

AMD Athlon II X4 2.6 GHz ZD260121K4216 ?

100.1%

AMD Athlon II X4 620 ?

100.1%

AMD A8-3820 ?

100%

Intel Core i5-650 ?

99%

AMD Athlon II X3 460 ?

98%

AMD Phenom II X4 805 ?

96.3%

AMD Athlon II X4 615e ?

96.3%

AMD Phenom II X4 905e ?

96.2%

MMX / SSE / SSE2 performance

Part number Result

AMD A6-3670K ?

103.6%

AMD A10-5700 ?

102.9%

AMD Athlon II X3 460 ?

101.8%

Intel Core 2 Quad Q8200 ?

101.2%

AMD FX-4100 ?

100.9%

AMD A8-3820 ?

100%

AMD Athlon II X4 631 ?

99.9%

AMD A6-3650 ?

99.9%

Intel Core 2 Quad Q6600 ?

99.5%

AMD Athlon II X3 455 ?

98.9%

AMD Phenom II X4 910e ?

98%

Memory-intensive program performance

Part number Result

AMD Phenom II X4 805 ?

104.1%

Intel Core 2 Quad Q9400 ?

103.5%

AMD A6-3670K ?

102.6%

AMD Phenom II X3 705e ?

102.2%

AMD Athlon II X4 631 ?

100.1%

AMD A8-3820 ?

100%

AMD A6-3650 ?

99.9%

AMD Phenom II X3 700e ?

98.7%

AMD A8-3800 ?

97%

Intel Core 2 Quad Q6600 ?

96.9%

AMD Phenom II X4 840 ?

94.8%

CPU ID (2)

CPUID Tools

Our CPUID database contains 2 records for this microprocessor. See all submitted records.
Use our CPU identification tool to check features of your CPU.

CPUID features of AMD A8-3820

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 A8-Series A8-3820 CPU.

Manufacturer:	AMD
CPU Family:	A8-Series
Model Number:	A8-3820
Frequency:	2500 MHz

Part number:	AD3820OJZ43GX
Stepping Code:	DA 1151PGT
Comment:	very good UV 0,9V@800Mhz +0,5V every P-State and 0,9/1,0V Nbridge
Submitted by:	vinibali

General information
Vendor:	AuthenticAMD
Processor name (BIOS):	AMD A8-3820 APU with Radeon(tm) HD Graphics
Cores:	4
Logical processors:	4
Processor type:	Original OEM Processor
Core stepping:	LN-B0
CPUID signature:	300F10
Family:	18 (012h)
Model:	1 (01h)
Stepping:	0 (00h)

Cache: L1 data L1 instruction L2

Size: 4 x 64 KB 4 x 64 KB 4 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

Turbo Core Advanced programmable interrupt controller

PowerNow! / Cool'n'Quiet 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