Detailed side-by-side comparison
Q: Can I upgrade my AMD Athlon II X4 651K processor?
A: No. This CPU is the fastest for Socket FM1.
Athlon II X4 651K Overclocking
Sorry, overclocking information is not available at this time.
Related news stories
AMD to discontinue socket FM1 APUs
Nov 27, 2012
: Since the launch of socket FM2 APU platform in October 2012,
sales of the socket FM1 APUs, based on Llano core, have been in
decline. In the second quarter of this year AMD sold 3.3 million
socket FM1 processors. That number dropped to 0.6 million in Q3, and
it is expected to be even lower this quarter. The fourth quarter will
also be the last one, when AMD offers socket FM1 processors.
AMD 651K Benchmarks
The graphs below show up to 10 microprocessors with
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 651K
compares to other CPUs in specific benchmarks or in aggregate
milti-threading performance please see benchmark tools section on the
|CPU vendor string:||AuthenticAMD|
|CPU name string:||AMD Athlon(tm) II X4 651 Quad-Core Processor|
CPU ID information for the Athlon II X4 651K
Search or browse all public submissions in our CPUID database.
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 651K CPU.
|CPU Family:||Athlon II X4|
|Stepping Code:||DA 1206PGS|
|Processor name (BIOS):||AMD Athlon(tm) II X4 651 Quad-Core Processor|
|Processor type:||Original OEM Processor|
|Model:|| 1 (01h)|
|Stepping:|| 0 (00h)|
||4 x 64 KB
||4 x 64 KB
||4 x 1 MB
|Lines per tag:
|Instruction set extensions||Additional instructions|
||Advanced Bit manipulation|
|AMD extensions to MMX
|Extensions to 3DNow!
|Major features||Other features|
|On-chip Floating Point Unit
||1 GB large page support|
|64-bit / Intel 64
||100MHz multiplier control|
||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|
||Extended APIC space|
||Hardware P-state control|
||Hardware thermal control|
||Instruction based sampling|
||LAHF/SAHF support in 64-bit mode|
||LOCK MOV CR0 means MOV CR8|
||Machine check architecture|
||Machine check exception|
||Memory-type range registers|
||Misaligned SSE mode|
||Nested page tables|
||OS visible workaround|
||Page attribute table|
||Page global extension|
||Page-size extensions (4MB pages)|
||Physical address extensions|
||Software thermal control|
||Support for NRIP save|
||TSC rate is ensured to be invariant across all states|
||Time stamp counter|
||Virtual 8086-mode enhancements|
||Watchdog timer support|
CPUs, related to AMD Athlon II X4 651K
• 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 651K
• Click on the >
• 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
You're welcome to post suggestions, corrections, your own personal
AMD Athlon II X4 651K review, or your experience with the microprocessor.
Please do not ask upgrade and troubleshooting questions, and do not start