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AMD Athlon II X4 620 - ADX620WFK42GI / ADX620WFGIBOX

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ADX620WFK42GI / ADX620WFGIBOX, or model 620, was one of the first two processors in the Athlon II X4 family. The 620 was released together with model 630 on September 16. The Athlon II X4 620 had 7% lower frequency than the 630, and it was 23% cheaper. In fact, the 620 was the cheapest quad-core CPU on market during its introduction. In a related press release, AMD announced it as the "first sub-$100 quad-core CPU". The 620 and other Athlon II X4 processors have most of the features of more expensive Phenom II X4 models, but don't have level 3 cache. For example, Phenom II X4 810 and 910 run at the same frequency and have similar features as the 620, but the Phenoms include 4 MB and 6 MB L3 cache respectively. Large shared level 3 cache provides significant boost, in some cases by 20% or more, in applications that require high memory bandwidth.

AMD Athlon II X4 620 specifications

General information
TypeCPU / Microprocessor
Market segmentDesktop
FamilyAMD Athlon II X4
Model number  ? 620
CPU part numbers
  • ADX620WFK42GI is an OEM/tray microprocessor
  • ADX620WFGIBOX is a boxed microprocessor
Stepping codesCACYC AC   CADAC AD
Frequency  ? 2600 MHz
Bus speed  ? 667 MHz Memory controller
One 2000 MHz 16-bit HyperTransport link
Clock multiplier  ? 13
Package938-pin organic micro-PGA
SocketsSocket AM2+
Socket AM3
Weight1.3oz / 37.7g (CPU)
15.7oz / 444g (box)
Introduction dateSep 16, 2009
Price at introduction$99
Architecture / Microarchitecture
Processor core  ? Propus
Core stepping  ? BL-C2
Manufacturing process0.045 micron SOI
Die size169mm2
Data width64 bit
The number of cores4
The number of threads4
Floating Point UnitIntegrated
Level 1 cache size  ? 4 x 64 KB instruction caches
4 x 64 KB data caches
Level 2 cache size  ? 4 x 512 KB caches
Level 3 cache sizeNone
  • 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  ? 0.925V - 1.425V
Maximum operating temperature  ? 55°C - 71°C
Thermal Design Power  ? 95 Watt
Notes on AMD Athlon II X4 620
  • The fastest supported memory is DDR2-1066 and DDR3-1333
  • The processor was discontinued at the end of 1st quarter 2010

Detailed side-by-side comparison

For detailed comparision of the AMD Athlon II X4 620 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: ADX620WFK42GI, AMD Athlon II X4 2.6GHz, Propus Socket AM2+, Socket AM3

Historical price chart

The chart below shows official prices of AMD Athlon II X4 620, 630 and 631 processors:

Historical official prices of Athlon II X4 620, 630 and 631 processors


Q: I have an AMD Athlon II X4 620 microprocessor. Can I upgrade it?
A: Probably yes. CPU compatibility is determined by your motherboard. Please see resource for CPU support list for your board.

Athlon II X4 620 Overclocking

Sorry, overclocking information is not available at this time.

Compare AMD Athlon II X4 620 benchmark results with all tested CPUs from one of the following families:

To compare this Athlon II X4 CPU with any tested processor please proceed to

For additional benchmarks, comparing multi-threaded performance of this microprocessor with other Athlon II X4 CPUs and the fastest AMD and Intel x86 chips, please visit AMD Athlon II X4 620 benchmarks page.

AMD Athlon II X4 620 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 Athlon II X4 620 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:0F52h
CPU vendor string:AuthenticAMD
CPU name string:AMD Athlon(tm) II X4 620 Processor

Integer performance

Part number   Result
AMD FX-4170  ? 
AMD A8-3820  ? 
AMD Athlon II X4 2.6 GHz ZD260121K4216  ? 
AMD Phenom II X4 910e  ? 
AMD Phenom II X4 910  ? 
AMD Athlon II X4 620  ? 
AMD Phenom II X4 810  ? 
AMD Athlon II X4 620e  ? 
AMD A10-6800K  ? 
AMD A10-6800B  ? 
AMD Athlon II X3 460  ? 

Floating Point performance

Part number   Result
AMD Phenom II X4 810  ? 
AMD Phenom II X4 910  ? 
AMD Athlon II X4 620e  ? 
AMD Phenom II X4 910e  ? 
AMD Athlon II X4 2.6 GHz ZD260121K4216  ? 
AMD Athlon II X4 620  ? 
AMD A8-3820  ? 
Intel Core i3-3210  ? 
Intel Core i5-650  ? 
Intel Core i5-2500T  ? 
AMD FX-6120  ? 

MMX / SSE / SSE2 performance

Part number   Result
AMD Phenom II X4 810  ? 
AMD Athlon X4 740  ? 
AMD A8-5500  ? 
AMD A8-3800  ? 
AMD Athlon II X4 620e  ? 
AMD Athlon II X4 620  ? 
AMD Athlon II X4 2.6 GHz ZD260121K4216  ? 
AMD Athlon II X3 450  ? 
Intel Core i3-2100T  ? 
Intel Core i5-450M (PGA988)  ? 
AMD Phenom II X4 905e  ? 

Memory-intensive program performance

Part number   Result
AMD Athlon II X2 250 (rev. C3)  ? 
AMD A6-3500  ? 
AMD Athlon II X3 435 (rev. C2)  ? 
AMD Athlon II X2 250 (rev. C2)  ? 
AMD Athlon II X2 B24 (rev. C2)  ? 
AMD Athlon II X4 620  ? 
AMD Athlon II X2 250e  ? 
AMD Athlon II X4 620e  ? 
AMD Athlon II X2 245 (rev. C2)  ? 
AMD Athlon II X2 245e  ? 
AMD Athlon II X2 245 (rev. C3)  ? 

CPU ID information for the Athlon II X4 620

Our CPUID database contains 4 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 Athlon II X4 620 CPU.

CPU Family:Athlon II X4
Model Number:620
Frequency:2612 MHz
Part number:
Stepping Code:
Submitted by:
General information
Processor name (BIOS):AMD Athlon(tm) II X4 620 Processor
Logical processors:4
Processor type:Original OEM Processor
Core stepping:BL-C2
CPUID signature:100F52
Family:16 (010h)
Model: 5 (05h)
Stepping: 2 (02h)

Cache: L1 data L1 instruction L2
Size: 4 x 64 KB 4 x 64 KB 4 x 512 KB
Associativity: 2-way set
2-way set
16-way set
Line size: 64 bytes 64 bytes 64 bytes
Lines per tag: 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 Athlon II X4 620

Model Cores /
Frequency L2
TDP Features Price  
AMD Athlon II X4 family, Socket AM2+ / Socket AM3
   Athlon II X4 600e4 / 42.2 GHz2 MB 45W >
   Athlon II X4 605e (rev. C2)4 / 42.3 GHz2 MB 45W$98>
   Athlon II X4 605e (rev. C3)4 / 42.3 GHz2 MB 45W >
   Athlon II X4 610e4 / 42.4 GHz2 MB 45W$122>
   Athlon II X4 615e4 / 42.5 GHz2 MB 45W$133>
   Athlon II X4 6204 / 42.6 GHz2 MB 95W  
   Athlon II X4 620e4 / 42.6 GHz2 MB 45W >
   Athlon II X4 630 (rev. C2)4 / 42.8 GHz2 MB 95W >
   Athlon II X4 630 (rev. C3)4 / 42.8 GHz2 MB 95W >
   Athlon II X4 635 (rev. C2)4 / 42.9 GHz2 MB 95W >
   Athlon II X4 635 (rev. C3)4 / 42.9 GHz2 MB 95W >
   Athlon II X4 6404 / 43 GHz2 MB 95W$67>
   Athlon II X4 640 (rev. E0)4 / 43 GHz2 MB 95W >
   Athlon II X4 6454 / 43.1 GHz2 MB 95W$77>
   Athlon II X4 6504 / 43.2 GHz2 MB 95W >
AMD Athlon II X4 family, K10 micro-architecture, Other sockets
   Athlon II X4 6414 / 42.8 GHz4 MB 100W$65>
   Athlon II X4 6514 / 43 GHz4 MB 100W$76>
   Athlon II X4 651K4 / 43 GHz4 MB 100WUnlock >
Other families, K10 micro-architecture, Socket AM2+ / Socket AM3
   Athlon II 170u1 / 12 GHz1 MB 20W >
   Athlon X2 5200+ (0.045 micron)2 / 22.3 GHz1 MB 65W >
   Sempron X2 1902 / 22.5 GHz1 MB 45W >
   Athlon II X2 2802 / 23.6 GHz2 MB 65W$49>
   Phenom II X2 570 BE2 / 23.5 GHz1 MB6 MB80WUnlock >
   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 Athlon II X4 620
 • Click on the >  icon to compare any CPU in the table with the AMD Athlon II X4 620 (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 (6)

Back view of the box
2009-10-08 21:57:11
Posted by: gshv

Back view of the box
2009-10-08 21:57:51
Posted by: gshv

2009-10-08 21:58:18
Posted by: gshv

Athlon II X4 620 box
2009-10-08 22:03:01
Posted by: gshv

Box design is the same as other non-black edition Athlon II X2 processors. It is also very similar to Athlon X2 boxes, with the exception of a few different marketing phrases and a slogan.
Athlon II X4 620 box
2009-10-08 22:03:28
Posted by: gshv

Athlon II X4 620 CPU
2009-10-08 22:05:34
Posted by: gshv

Stepping code CADAC AD. The processor was manufactured in the middle of September 2009.
Athlon II X4 620 CPU
Comments (6)

You're welcome to post suggestions, corrections, your own personal AMD Athlon II X4 620 review, or your experience with the microprocessor. Please do not ask upgrade and troubleshooting questions, and do not start discussions.

Good Product

2010-01-18 22:26:13
Posted by: Pincho

I just buy it, and I am fully satisfied. Big power for little money. I use a Asus M4A785-M, 2GB of Ocz Reaper HPC PC2 6400, the onboard graphics for the time Ati Radeon 4200 256mb, cpu cooler liquid Cool Domino IT LAC and the whole is below 40c at full load.

Very good processor!

powerful and cheap

2010-01-20 15:53:31
Posted by: Bazz

Payed this CPU 80 euros. Overclocked NB at 2530MHz, and set CPU to work a 3.04 GHz at 1.2 volts. Result: almost 35 GFlops in LinX (x64). Temerature under 40 degrees Celsius in full load (TX2 cooler).

Bought mine in Nov.09 lookit 6MB L3!

2010-02-27 01:12:15
Posted by: dibozo

The CPUID info points to this being a "Propus' core.

Core Stepping: BL-C2
Family: F
Model: 5
Stepping: F

L1 and L2 cache are the right sizes. L3 of 6MB.

Bought mine in Nov.09 lookit 6MB L3!

Cinebench 10.5r 64 bit result

2010-04-16 00:58:21
Posted by: dikbozo

This is my 620 with the L3 enabled. I got a result substantially above what even a Phenom II 910 would get and just a bit under what a 940BE has reported. I am using a Radeon 4670 with dual monitors if that matters to anyone.

The result I got was 9355 under mutli core.

7-zip 64 bit

2010-04-21 13:18:01
Posted by: dibozo

Performance under 7-zip 64 bit was up like the Cinebench scores were. I got a result of 2644 with theL3 enabled.

Versatile and snappy

2010-06-16 06:54:36
Posted by: KyB

Bought this processor in Jan and OC'd to 3.2 GHz on air on an ASUS M3N78-vm MB

Nice CPU for $100 Cdn. fer sher

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