AMD Athlon X2 7850 Black Edition - AD785ZWCJ2BGH / AD785ZWCGHBOX

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Specifications

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AMD Athlon X2 7850 specifications

General information
Type	CPU / Microprocessor
Market segment	Desktop
Family	AMD Athlon X2
Model number ?	7850
CPU part numbers	AD785ZWCJ2BGH is an OEM/tray microprocessor AD785ZWCGHBOX is a boxed microprocessor
Stepping code	JAAAB AA
Frequency ?	2800 MHz
Clock multiplier ?	14
Package	940-pin organic microPGA
Sockets	Socket AM2 Socket AM2+
Fan/heatsink	CMDK8-7I52D-A15-GP
Introduction date	Apr 28, 2009
Price at introduction	$69

Architecture / Microarchitecture
Microarchitecture	K10
Processor core ?	Kuma
Core stepping ?	B3
CPUID	100F23
Manufacturing process	0.065 micron SOI 450 million transistors
Die size	285mm²
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 512 KB
Level 3 cache size	Shared 2 MB
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	Cool'n'Quiet 2.0 CoolCore technology ? Independent Dynamic Core Technology ? Dual Dynamic Power Management ?
On-chip peripherals	Integrated dual-channel (128-bit) DDR2 SDRAM Memory controller HyperTransport technology ?

Electrical / Thermal parameters
V core ?	1.2V - 1.25V
Maximum operating temperature ?	73°C
Thermal Design Power ?	95 Watt

Notes on AMD AD785ZWCJ2BGH
The processor has unlocked multiplier

CPUs, related to AMD Athlon X2 7850

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

AMD Athlon X2 family, Socket AM2 / Socket AM2+

   Athlon X2 5000+ (0.045 micron) 2 / 2 2.2 GHz 1 MB 65 Watt Unlock

   Athlon X2 5000+ (0.045 micron OGJ) 2 / 2 2.2 GHz 1 MB 65 Watt Unlock

   Athlon X2 6500 2 / 2 2.3 GHz 1 MB 2 MB 95 Watt Unlock

   Athlon X2 7450 2 / 2 2.4 GHz 1 MB 2 MB 95 Watt Unlock

   Athlon X2 7550 2 / 2 2.5 GHz 1 MB 2 MB 95 Watt Unlock

   Athlon X2 7750 (non-BE) 2 / 2 2.7 GHz 1 MB 2 MB 95 Watt Unlock

   Athlon X2 7750 (BE) 2 / 2 2.7 GHz 1 MB 2 MB 95 Watt Unlock

   Athlon X2 7850 2 / 2 2.8 GHz 1 MB 2 MB 95 Watt Unlock

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

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

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

   Phenom X3 8750 (non-BE) 3 / 3 2.4 GHz 1.5 MB 2 MB 95 Watt Unlock

   Phenom X3 8750B 3 / 3 2.4 GHz 1.5 MB 2 MB 95 Watt Unlock

   Phenom X3 8750 (BE) 3 / 3 2.4 GHz 1.5 MB 2 MB 95 Watt Unlock

   Phenom X3 8850 (non-BE) 3 / 3 2.5 GHz 1.5 MB 2 MB 95 Watt Unlock

   Phenom X3 8850B 3 / 3 2.5 GHz 1.5 MB 2 MB 95 Watt Unlock

   Phenom X4 9850 (95W) 4 / 4 2.5 GHz 2 MB 2 MB 95 Watt Unlock

   Phenom X4 9850B 4 / 4 2.5 GHz 2 MB 2 MB 95 Watt Unlock

   Phenom X4 9850 (125W, BE) 4 / 4 2.5 GHz 2 MB 2 MB 125 Watt Unlock

   Phenom X4 9950 (125W) 4 / 4 2.6 GHz 2 MB 2 MB 125 Watt Unlock

   Phenom X4 9950 (140W) 4 / 4 2.6 GHz 2 MB 2 MB 140 Watt Unlock

• Highlighted numbers and features indicate whether specific processor performs better or worse than Athlon X2 7850

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

• List of related CPUs is not complete.

• Features abbreviations:

Unlock - Unlocked multiplier

FAQ

Q: Can I upgrade my AMD Athlon X2 7850 microprocessor?

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

AMD Athlon X2 7850 Overclocking

Sorry, overclocking information is not available at this time.

Pictures (7)


CPU - bottom view
2009-07-22 23:00:24 Posted by: gshv


Athlon X2 7850 BE CPU
2009-07-22 23:06:48 Posted by: gshv


Box - back view
2009-07-22 23:07:18 Posted by: gshv


Box - side view
2009-07-22 23:09:06 Posted by: gshv


Box - 3D view
2009-07-22 23:09:45 Posted by: gshv


Athlon X2 7850 Black Edition box
2009-07-22 23:10:33 Posted by: gshv


AMD Athlon X2 7850 BE
2010-12-05 23:34:05 Posted by: Zoran Tisma
New stepping code JAARB

Benchmarks

Benchmark tools

Compare AMD Athlon X2 7850 benchmark results with all tested CPUs from one of the following families:
To compare this Athlon X2 CPU with any tested processor please proceed to
For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Athlon X2 CPUs and the fastest AMD and Intel x86 chips, please visit AMD Athlon X2 7850 benchmarks page.

AMD Athlon X2 7850 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 Athlon X2 7850 compares to other CPUs please see benchmark tools section above.

Benchmarked processor

CPU ID: 0F23h

CPU vendor string: AuthenticAMD

CPU name string: AMD Athlon(tm) 7850 Dual-Core Processor

Integer performance

Part number Result

AMD Athlon II X2 240 ?

102.7%

AMD Athlon II X2 220 ?

102.7%

AMD A4-3400 ?

102.6%

AMD A4-3400 (HX) ?

102.5%

AMD Phenom X3 8250e ?

102%

AMD Athlon X2 7850 ?

100%

AMD Athlon II X2 215 (rev. C2) ?

99.1%

AMD Athlon II X2 235e ?

99%

Intel Celeron E1500 ?

98.6%

AMD Athlon 64 X2 5400+ (65 W, BE) ?

96.5%

AMD Athlon X2 7750 (BE) ?

96.4%

Floating Point performance

Part number Result

AMD Athlon II X2 220 ?

100.8%

AMD Athlon II X2 240e (rev. C2) ?

100.7%

AMD Athlon II X2 240 ?

100.5%

Intel Celeron G550 ?

100.3%

Intel Pentium G620 ?

100.2%

AMD Athlon X2 7850 ?

100%

Intel Pentium 2.53 GHz ?

99%

Intel Pentium E5500 ?

99%

Intel Pentium E6300 ?

98.8%

AMD A4-3400 (HX) ?

97.7%

AMD A4-3400 ?

97.4%

MMX / SSE / SSE2 performance

Part number Result

Intel Celeron E3300 ?

103.1%

AMD Athlon II X2 240 ?

101.4%

AMD Athlon II X2 240e (rev. C2) ?

101.4%

AMD Athlon 64 X2 6400+ ?

101%

AMD Athlon II X2 220 ?

100.5%

AMD Athlon X2 7850 ?

100%

Intel Pentium G630T ?

99.9%

AMD A4-3400 (HX) ?

99.6%

AMD A4-3400 ?

99.5%

Intel Celeron E3200 ?

99%

AMD Athlon II X2 235e ?

97.8%

Memory-intensive program performance

Part number Result

AMD Athlon II X2 220 ?

101.9%

AMD Phenom X3 8600B (rev. B3) ?

101.6%

AMD Phenom X3 8650 ?

101.1%

AMD Phenom X4 9350e ?

101%

Intel Pentium E5500 ?

100.5%

AMD Athlon X2 7850 ?

100%

AMD Athlon II X2 215 (rev. C2) ?

100%

AMD Athlon 64 X2 6400+ ?

98.9%

Intel Pentium E5400 ?

98.5%

AMD Athlon X2 7750 (BE) ?

98.1%

AMD Athlon II X2 210e ?

97.2%

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 Athlon X2 7850

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 X2 7850 CPU.

Manufacturer:	AMD
CPU Family:	Athlon X2
Model Number:	7850
Frequency:	2948 MHz

Part number:	AD785ZWCJ2BGH
Stepping Code:
Comment:	2.8gh ovcto 3.1gh must have good cpu cooler H2O
Submitted by:	Stephen M.

General information
Vendor:	AuthenticAMD
Processor name (BIOS):	AMD Athlon(tm) 7850 Dual-Core Processor
Cores:	2
Logical processors:	2
Processor type:	Original OEM Processor
Core stepping:	DR-B3
CPUID signature:	100F23
Family:	16 (010h)
Model:	2 (02h)
Stepping:	3 (03h)

Cache: L1 data L1 instruction L2 L3

Size: 2 x 64 KB 2 x 64 KB 2 x 512 KB 2 MB

Associativity: 2-way set
associative 2-way set
associative 16-way set
associative 32-way set
associative

Line size: 64 bytes 64 bytes 64 bytes 64 bytes

Lines per tag: 1 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

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

Comments (2)

You're welcome to post suggestions, corrections, your own personal AMD Athlon X2 7850 review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

Not as described

2009-07-30 14:04:01

Posted by: Dan

I have a retail version, and the clock multiplier is not unlocked?????

It will frequency overclock easily to 3.1GHZ, but the multiplier unlocked is the key to stability, in the overclock.

Kind of defeats the reason to even have the CPU.

Great cpu

2009-10-10 11:10:29

Posted by: goat

Bought mine back in may and haven't had any issues clocked at 3ghz 200x15 V1.3 flies threw Win7(score is 6.3) This cpu has alot more ocing potential but my mobo doesn't oc well (older biostar GF8200 m2+)

Last modified: 14 May 2013