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
|Type||CPU / Microprocessor|
|Family||AMD Athlon II X4|
|Model number ? ||620|
|CPU part numbers|
- ADX620WFK42GI is an OEM/tray microprocessor
- ADX620WFGIBOX is a boxed microprocessor
|Stepping codes||CACYC AC CADAC AD|
|Frequency ? ||2600 MHz|
|Bus speed ? ||667 MHz Memory controller|
One 2000 MHz 16-bit HyperTransport link
|Clock multiplier ? ||13|
|Package||938-pin organic micro-PGA|
|Weight||1.3oz / 37.7g (CPU)|
15.7oz / 444g (box)
|Introduction date||Sep 16, 2009|
|Price at introduction||$99|
|Architecture / Microarchitecture|
|Processor core ? ||Propus|
|Core stepping ? ||BL-C2|
|Manufacturing process||0.045 micron SOI|
|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 instruction caches|
4 x 64 KB data caches
|Level 2 cache size ? ||4 x 512 KB caches|
|Level 3 cache size||None|
- 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|
- 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 peripherals||HyperTransport 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
Historical price chart
The chart below shows official prices of AMD 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 CPU-Upgrade.com resource for CPU support list for your board.
Athlon II X4 620 Overclocking
Sorry, overclocking information is not available at this time.