AMD A8-Series A8-3850 - AD3850WNZ43GX / AD3850WNGXBOX

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Specifications

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AMD A8-3850 specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	AMD A8-Series
Model number ?	A8-3850
CPU part numbers	AD3850WNZ43GX is an OEM/tray microprocessor AD3850WNGXBOX is a boxed microprocessor
Frequency ?	2900 MHz
Package	905-pin lidded micro-PGA package
Socket	Socket FM1
Size	1.57" x 1.57" / 4cm x 4cm
Introduction date	July 3, 2011
Price at introduction	$135

Architecture / Microarchitecture
Microarchitecture	K10
Platform	Lynx
Processor core ?	Llano
Core stepping ?	LN1-B0
CPUID	300F10
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
Cache latency	3 (L1 cache) 22 (L2 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 ?
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 ?	72.7°C
Thermal Design Power ?	100 Watt

CPUs, related to AMD A8-3850

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 $87

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

Other families, K10 micro-architecture, Socket FM1

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

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

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

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

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

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

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

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

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

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

• Highlighted numbers and features indicate whether specific processor performs better or worse than A8-3850

• 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: Is it possible to upgrade my AMD A8-3850 processor?

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

AMD A8-3850 Overclocking

Sorry, overclocking information is not available at this time.

Pictures (4)



2011-07-13 17:59:37 Posted by: gshv
Bottom view

AMD A8-3850 CPU pictures
2011-07-13 18:01:55 Posted by: gshv
Top view. The processor was manufactured in the middle of June 2011 (about two weeks before it was announced).

lot
2011-10-21 13:53:52 Posted by: jp-akb
I have


2011-11-07 13:04:12 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.

AMD to drop prices, launch FX-4130 CPU on August 27

Aug 24, 2012: AMD today updated A-Series, FX-Series and Phenom II pricing pages, lowering prices on full range of "Llano" APUs, and high performance K10 and "Bulldozer" CPUs. The pages shows effective date August 27, which suggests that the price drops will happen next Monday. Overall, the prices were cut by 1% - 23%.

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.

Launch dates of AMD E2- and A-Series desktop CPUs

Jun 29, 2011: MSI recently published a marketing document, titled "MSI A75-Series Mainboards". Besides specifications of four upcoming MSI socket FM1 motherboards, that will be launched in the third quarter 2011, the document also provides AMD APU roadmap with approximate launch dates of desktop Llano microprocessors.

Llano desktop CPUs to launch on June 30

Jun 27, 2011: Fudzilla reported today that desktop Llano microprocessors will be launched on Thursday, June 30 (see correction below). Last weekend, first ASUS F1A75-M PRO, F1A75-V PRO, Gigabyte GA-A75M-UD2H and GA-A75-UD4H socket FM1 mainboards appeared in stock of smaller internet stores. The prices are starting from about $110 for ASUS F1A75-M PRO and Gigabyte GA-A75M-UD2H micro-ATX boards, and up to $125 - $130 for ASUS F1A75-V PRO and GA-A75-UD4H ATX motherboards. The desktop Llano processors are not available for sale in US yet, although two of them, A6-3650 and A8-3850, can be pre-ordered for $120+ and $142+, respectively.

E2- and A-Series desktop APU line-up revealed

Jun 13, 2011: Last Friday, DonanimHaber published updated line-up from soon to be released A-Series and E2-Series desktop APUs. The new line-up includes 5 A-Series microprocessors with 2 and 4 CPU cores, and one budget dual-core E2-3200 model. All upcoming chips use "Llano" core, that merges 32nm version of K10 CPU with high-performance graphics engine. The newly-available specifications are close to A- and E2-Series specs, that appeared in March of this year. The final line-up uses different model numbers, and there are minor changes in the size of L2 cache and DDR3 memory support for the A4-3400 model.

Benchmarks

Benchmark tools

Compare AMD A8-3850 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 A8-3850 benchmarks page.

AMD A8-3850 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 A8-3850 compares to other CPUs please see benchmark tools section above.

Benchmarked processor

CPU ID: 300F10

CPU vendor string: AuthenticAMD

CPU name string: AMD A8-3850 APU with Radeon(tm) HD Graphics

Integer performance

Part number Result

AMD Athlon II X4 640 ?

100.1%

AMD Phenom II X4 960T ?

100%

AMD Phenom II X4 945 (95W, rev. C2) ?

100%

AMD Phenom II X4 945 (125W) ?

100%

AMD Phenom II X4 B95 ?

100%

AMD A8-3850 ?

100%

Intel Core 2 Quad Q6600 ?

96.8%

AMD Athlon II X4 635 (rev. C3) ?

96.7%

AMD Athlon II X4 635 (rev. C2) ?

96.7%

AMD Phenom II X4 840T ?

96.6%

Intel Core 2 Quad Q8200 ?

94.9%

Floating Point performance

Part number Result

AMD Phenom II X4 945 (125W) ?

103%

Intel Core i5-2500S ?

102.9%

AMD Athlon II X4 640 (rev. E0) ?

102.8%

AMD Phenom II X4 960T ?

102.6%

Intel Core i5-680 ?

101.7%

AMD A8-3850 ?

100%

AMD Phenom II X4 840T ?

99.6%

AMD Athlon II X4 635 (rev. C3) ?

99.6%

AMD Athlon II X4 635 (rev. C2) ?

99.4%

Intel Core i5-750 ?

98.9%

AMD Phenom II X4 925 (rev. C2) ?

96.2%

MMX / SSE / SSE2 performance

Part number Result

AMD Phenom II X4 945 (95W, rev. C2) ?

101.2%

AMD Phenom II X4 B95 ?

101.2%

AMD A10-5800K ?

100.4%

AMD Athlon II X4 640 ?

100.2%

AMD Athlon II X4 640 (rev. E0) ?

100.1%

AMD A8-3850 ?

100%

AMD Phenom II X4 840T ?

99.7%

Intel Core 2 Quad Q6700 ?

99.4%

AMD FX-4300 ?

97.8%

AMD Athlon II X4 635 (rev. C3) ?

96.9%

AMD Athlon II X4 635 (rev. C2) ?

96.9%

Memory-intensive program performance

Part number Result

AMD Phenom II X3 720 (BE) ?

102.3%

AMD A8-3870K ?

101.4%

AMD Phenom II X4 910 ?

100.8%

Intel Core 2 Quad Q9505 ?

100.7%

AMD Phenom II X4 910e ?

100.4%

AMD A8-3850 ?

100%

AMD Phenom II X4 810 ?

99.3%

Intel Core 2 Extreme X6800 ?

99.3%

Intel Core 2 Quad Q6700 ?

98.6%

AMD Phenom II X4 2.5GHz ZD250117K4D12 ?

97.9%

AMD Phenom II X3 710 ?

97.6%

CPU ID (5)

CPUID Tools

Our CPUID database contains 5 records for this microprocessor. See all submitted records.
Use our CPU identification tool to check features of your CPU.

CPUID features of AMD A8-3850

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 A8-3850 CPU.

Manufacturer:	AMD
CPU Family:	A8-Series
Model Number:	A8-3850
Frequency:	2900 MHz

Part number:	AD3850WNZ43GX
Stepping Code:	LN1-B0
Comment:
Submitted by:	shashwat

General information
Vendor:	AuthenticAMD
Processor name (BIOS):	AMD A8-3850 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

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 (2)

You're welcome to post suggestions, corrections, your own personal AMD A8-3850 review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

temps,

2011-08-16 10:37:43

Posted by: 84

getting idle 57 C out of the box, stock fan seems very cheap and for some reason the thermal paste only covers a small area of the chip

2011-08-18 12:02:44