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AMD Phenom II X3 740 Black Edition - HDZ740WFK3DGI / HDZ740WFGIBOX

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Phenom II X3 740 triple-core microprocessor was introduced in the third quarter of 2009. At the time Athlon II X3 line of processors was not announced yet, and the fastest quad-core Phenom II CPU was model 965 with 140 Watt TDP. As all other Phenom II X3 CPUs, the 740 includes three cores, each with its own level 1 and level 2 caches, and shared 6 MB level 3 cache. The package also incorporates memory controller that supports DDR2 memory on socket AM2+ motherboards, and DDR3 memory on socket AM3 motherboards. To communicate with peripheral devices the CPU uses one HyperTransport link clocked at 2 GHz. The Phenom II 740 operates at 3 GHz, and, as of September 2010, along with B75 model it is the fastest triple-core Phenom II-branded CPU. Clock multiplier on the microprocessor is unlocked, and it can be easily overclocked by changing the multiplier in BIOS. CPU features are standard for Phenom IIs: 64-bit instructions, enhanced virus protection and Virtualization. This Phenom II includes various power saving features, that reduce power consumption by turning off parts of the CPU, or throttling CPU frequency down when the processor is idle. The 740 has C2 core stepping, consumes less than 95 Watt, and is manufactured in 938-pin package. OEM version of the microprocessor was shipped in a number of OEM systems: HP Pro 3015, HP Pro 3005, HP Pro 3120 and Lenovo ThinkCentre 3317, just to name a few. The Phenom II X3 740 was never offered as a boxed processor.

At default frequency, the 740 is somewhat faster than other members of Phenom II X3 family. For instance, the 740 is about 3% - 7% faster than Phenom II X3 720, and 6% - 14% faster than Phenom II 710. The Phenom II 740 also has higher performance than similarly clocked triple-core Athlon II 440 processors, ADX440WFK32GI and ADX440WFK32GM. On average the 740 has 7% - 10% better performance than the 440, and in some tasks it could faster up to 15%.

AMD Phenom II X3 740 specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyAMD Phenom II X3
Model number  ? 740
CPU part numbers
  • HDZ740WFK3DGI is an OEM/tray microprocessor
  • HDZ740WFGIBOX is a boxed microprocessor
Stepping codesAACYC AC   CACYC AC
Frequency  ? 3000 MHz
Bus speed  ? 667 MHz Memory controller
One 2000 MHz 16-bit HyperTransport link
Clock multiplier  ? 15
Package938-pin organic micro-PGA
SocketsSocket AM2+
Socket AM3
Weight1.4oz / 38.3g
Introduction date3rd quarter 2009
Architecture / Microarchitecture
Processor core  ? Heka
Core stepping  ? RB-C2
Manufacturing process0.045 micron SOI
Die size258mm2
Data width64 bit
The number of cores3
The number of threads3
Floating Point UnitIntegrated
Level 1 cache size  ? 3 x 64 KB 2-way associative instruction caches
3 x 64 KB 2-way associative data caches
Level 2 cache size  ? 3 x 512 KB 16-way associative caches
Level 3 cache size6 MB shared 48-way associative cache
Cache latency3 (L1 cache)
15 (L2 cache)
51 (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  ? 
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
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 technology
Electrical / Thermal parameters
V core  ? 0.85V - 1.425V
Maximum operating temperature  ? 55°C - 73°C
Thermal Design Power  ? 95 Watt
Notes on AMD Phenom II X3 740
  • The processor has unlocked clock multiplier

Detailed side-by-side comparison

For detailed comparision of the AMD Phenom II X3 740 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: HDZ740WFK3DGI, AMD Phenom II X3 3GHz, Heka Socket AM2+, Socket AM3


Q: Can I upgrade my Phenom II X3 740 processor?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see website for CPU support list for your board.

Phenom II X3 740 Overclocking

Sorry, overclocking information is not available at this time.

Related news stories

OEM Phenom II X3 740 is available at Newegg
Sep 01, 2010: Phenom II X3 740 triple-core microprocessor appeared in the news more than a year ago. While it was included in AMD roadmaps and frequently referenced in motherboard CPU support lists, it was never sold in retail as a boxed processor. OEM version of this processor is now available at Newegg for $88.99 with $5.99 shipping.

Compare AMD Phenom II X3 740 benchmark results with all tested CPUs from one of the following families:

To compare this Phenom II X3 CPU with any tested processor please proceed to

For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Phenom II X3 CPUs and the fastest AMD and Intel x86 chips, please visit AMD Phenom II X3 740 benchmarks page.

AMD Phenom II X3 740 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 Phenom II X3 740 compares to other CPUs in specific benchmarks or in aggregate milti-threading performance please see benchmark tools section on the right.

Benchmarked processor

CPU ID:0F42h
CPU vendor string:AuthenticAMD
CPU name string:AMD Phenom(tm) II X3 740 Processor

Integer performance

Part number   Result
Intel Core i3-2100  ? 
Intel Core i5-2390T  ? 
Intel Core i3-2105  ? 
AMD FX-4100  ? 
Intel Core i3-3210  ? 
AMD Phenom II X3 740  ? 
AMD Phenom II X3 B75  ? 
AMD Athlon II X3 440 (rev. C3)  ? 
AMD Athlon II X3 440 (rev. C2)  ? 
AMD A8-6500B  ? 
Intel Core i5-650  ? 

Floating Point performance

Part number   Result
AMD A6-3620  ? 
Intel Core 2 Quad Q8200  ? 
Intel Core i3-530  ? 
Intel Core i3-3220T  ? 
AMD Athlon II X3 440 (rev. C2)  ? 
AMD Phenom II X3 740  ? 
AMD Athlon II X3 440 (rev. C3)  ? 
AMD Phenom II X3 B75  ? 
Intel Core i3-520  ? 
Intel Core 2 Quad Q6600  ? 
AMD Athlon II X3 435 (rev. C3)  ? 

MMX / SSE / SSE2 performance

Part number   Result
AMD Phenom II X4 2.5GHz ZD250117K4D12  ? 
AMD Athlon II X4 615e  ? 
Intel Core i3-2100T  ? 
AMD Athlon II X3 445  ? 
AMD Phenom II X3 B75  ? 
AMD Phenom II X3 740  ? 
AMD Athlon II X4 610e  ? 
AMD Athlon II X3 440 (rev. C3)  ? 
AMD Athlon II X3 440 (rev. C2)  ? 
AMD A6-3620  ? 
AMD Athlon II X3 435 (rev. C3)  ? 

Memory-intensive program performance

Part number   Result
AMD Phenom II X3 B75  ? 
AMD Phenom II X4 B93  ? 
AMD Phenom II X4 830  ? 
AMD Athlon X4 740  ? 
AMD Phenom II X4 940  ? 
AMD Phenom II X3 740  ? 
Intel Core 2 Quad Q9550  ? 
Intel Core i3-2120T  ? 
AMD Phenom II X4 650T  ? 
AMD Athlon II X4 651  ? 
Intel Core i3-540  ? 

CPU ID information for the Phenom II X3 740

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 X3 740 CPU.

CPU Family:Phenom II X3
Model Number:740
Frequency:2993 MHz
Part number:
Stepping Code:AACYC AC 0916APMW
Submitted by:CPU-World
General information
Processor name (BIOS):AMD Phenom(tm) II X3 740 Processor
Logical processors:3
Processor type:Original OEM Processor
Core stepping:RB-C2
CPUID signature:100F42
Family:16 (010h)
Model: 4 (04h)
Stepping: 2 (02h)

Cache: L1 data L1 instruction L2 L3
Size: 3 x 64 KB 3 x 64 KB 3 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
PowerNow! / Cool'n'Quiet Advanced programmable interrupt controller
  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 X3 740

Model Cores /
Frequency L2
TDP Features Price  
AMD Phenom II X3 family, Socket AM2+ / Socket AM3
   Phenom II X3 700e3 / 32.4 GHz1.5 MB6 MB71.3WUnlock >
   Phenom II X3 705e3 / 32.5 GHz1.5 MB6 MB71WUnlock >
   Phenom II X3 7103 / 32.6 GHz1.5 MB6 MB107.4WUnlock >
   Phenom II X3 720 (non-BE)3 / 32.8 GHz1.5 MB6 MB95WUnlock >
   Phenom II X3 B733 / 32.8 GHz1.5 MB6 MB95WUnlock >
   Phenom II X3 720 (BE)3 / 32.8 GHz1.5 MB6 MB106.5WUnlock >
   Phenom II X3 B753 / 33 GHz1.5 MB6 MB95WUnlock >
   Phenom II X3 B75 (rev. C3)3 / 33 GHz1.5 MB6 MB95WUnlock >
   Phenom II X3 7403 / 33 GHz1.5 MB6 MB95WUnlock  
   Phenom II X3 B773 / 33.2 GHz1.5 MB6 MB95WUnlock >
AMD Phenom II X3 family, K10 micro-architecture, Other sockets
   Phenom II X3 7153 / 32.8 GHz1.5 MB6 MB95WUnlock >
Other families, K10 micro-architecture, Socket AM2+ / Socket AM3
   Athlon II 170u1 / 12 GHz1 MB 20WUnlock >
   Sempron 1501 / 12.9 GHz1 MB 45WUnlock >
   Athlon X2 5200+ (0.045 micron)2 / 22.3 GHz1 MB 65WUnlock >
   Sempron X2 1902 / 22.5 GHz1 MB 45WUnlock >
   Athlon II X2 2802 / 23.6 GHz2 MB 65WUnlock$49>
   Phenom II X2 B602 / 23.5 GHz1 MB6 MB80WUnlock >
   Phenom II X2 570 BE2 / 23.5 GHz1 MB6 MB80WUnlock >
   Athlon II X3 4603 / 33.4 GHz1.5 MB 95WUnlock$69>
   Athlon II X4 6504 / 43.2 GHz2 MB 95WUnlock >
   Phenom II X4 9804 / 43.7 GHz2 MB6 MB125WUnlock$163>
 • 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 X3 740
 • Click on the >  icon to compare any CPU in the table with the AMD Phenom II X3 740 (Javascript required).
 • The 'Price' column shows official AMD prices as of Apr 9, 2014. Prices for obsolete and tray-only processors are not provided.
 • List of related CPUs is not complete.
 • Features abbreviations:
Unlock - Unlocked multiplier

Pictures (4)

AMD Phenom II X3 740 BE (CPU-Z Screenshot)
2009-12-22 02:11:21
Posted by: Michael S

AMD Phenom II X3 740 BE (CPU-Z Screenshot)
2010-01-26 21:39:24
Posted by: gshv

Phenom II X3 740 Black Edition CPU
2010-01-26 21:39:50
Posted by: gshv

Phenom II X3 740 Black Edition CPU
2010-11-02 22:38:22
Posted by: gshv

CPU-Z screenshot of Phenom II 740 with unlocked 4th core. The unlocked processor is identified by BIOS as "AMD Phenom(tm) II X4 40 Processor". Unlocking was done by setting ACC to "Auto", and didn't require additional core voltage and/or ACC adjustments.
Comments (3)

You're welcome to post suggestions, corrections, your own personal AMD Phenom II X3 740 review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.


2010-06-08 17:51:02
Posted by: Chris D.

how come I could never see any vendor selling???

Response: Currently Phenom II X3 740 CPUs are shipped only as OEM processors. Some PCs you can find this processor in: HP Pro 3005 / 3015 / 3120

Boxed being sold in Europe

2010-10-02 07:22:44
Posted by: HHenkka

As the subject line says, it is being sold as boxed here in Europe. Don't know whether this info is relevant to this site, but this is the fact. Just recently ordered myself one.


2010-12-03 17:58:03
Posted by: jimi-mac

Newegg had this CPU on sale near the end of November for only $69 but it sold out fairly quickly. Mine was just delivered today & I can't wait to try it! It's listed now for $89 but is still out of stock.

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