AMD Athlon II X4 651
AMD Athlon II X4 630
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AMD Athlon II X4 651 vs AMD Athlon II X4 630

Overall score
star star star star star
Released
Q4/2011
Released
Q3/2009
Overall score
star star star star star

Which one of the central processing units is better: AMD Athlon II X4 651 or AMD Athlon II X4 630? On this page we compare the technical data and benchmark results of different CPUs.

The AMD Athlon II X4 651 has cores and threads with maximum working frequency of . The AMD Athlon II X4 651 was released on Q4/2011.

The AMD Athlon II X4 630 has cores with threads and of frequency. The AMD Athlon II X4 630 was released on Q3/2009.

Differences
Reasons to consider
AMD Athlon II X4 651
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  • Higher clock speed
    3.00 GHz left arrow 2.80 GHz
    Around -7% better clock speed
Reasons to consider
AMD Athlon II X4 630
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  • Performance per watt
    95 W left arrow 100 W
    About 0.95 times less performance per watt
Specifications
Complete list of technical specifications
AMD Athlon II X4 651 AMD Athlon II X4 651
AMD Athlon II X4 630 AMD Athlon II X4 630
CPU generation and family

Let's find out which one of AMD Athlon II X4 651 and AMD Athlon II X4 630 is of a more recent generation, and what segment it belongs to.

  • Name
    AMD Athlon II X4 651 left arrow AMD Athlon II X4 630
  • Family
    AMD Athlon II left arrow AMD Athlon II
  • CPU group
    AMD Athlon II X4 (Llano) left arrow AMD Athlon II X4 (Propus)
  • Segment
    Desktop / Server left arrow Desktop / Server
  • Generation
    2 left arrow 1
CPU Cores and Base Frequency

In this block we are going to compare AMD Athlon II X4 651 vs AMD Athlon II X4 630 by main technical specifications: number of cores and threads, base and maximum frequencies, process technology and cache size. The higher these specifications are, the more powerful your CPU will be.

  • CPU Cores / Threads
    4 / 4 left arrow 4 / 4
  • Core architecture
    normal left arrow normal
  • Cores
    4x left arrow 4x
  • Hyperthreading / SMT
    No left arrow No
  • Overclocking
    No left arrow No
  • Frequency
    3.00 GHz left arrow 2.80 GHz
Internal Graphics

Common specifications for integrated graphics cards in AMD Athlon II X4 651 and AMD Athlon II X4 630 along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

  • GPU name
    no iGPU left arrow no iGPU
  • GPU (Turbo)
    No turbo left arrow No turbo
Hardware codec support

Let's compare the support of video codecs between AMD Athlon II X4 651 and AMD Athlon II X4 630. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    No left arrow No
  • VP8
    No left arrow No
  • VP9
    No left arrow No
  • AV1
    No left arrow No
  • AVC
    No left arrow No
  • VC-1
    No left arrow No
  • JPEG
    No left arrow No
Memory & PCIe

To choose the best model between AMD Athlon II X4 651 and AMD Athlon II X4 630 you need to pay special attention to memory type, clock frequency, multi-channel features, and PCIe version. The higher these numbers are, the better your CPU will be. Keep in mind that the maximum memory and frequency may also depend on the model of the motherboard.

  • Memory type
    DDR3-1333 left arrow DDR3-1333
  • Max. Memory
    16 GB left arrow 16 GB
  • Memory channels
    2 (Dual Channel) left arrow 2 (Dual Channel)
  • Bandwidth
    21.3 GB/s left arrow --
  • ECC
    No left arrow No
  • PCIe
    2.0 left arrow 2.0
  • AES-NI
    No left arrow No
Thermal Management

Let's find out what TDP value would be better for AMD Athlon II X4 651 or AMD Athlon II X4 630? The Thermal Design Power (TDP) indicates the maximum amount of heat that should be dissipated by the chip cooling system. However, the value of TDP gives only a rough indication of the real power consumption of the CPU.

  • TDP (PL1)
    100 W left arrow 95 W
Technical details

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD Athlon II X4 651 and AMD Athlon II X4 630 CPUs along with a list of ISA extensions.

  • Technology
    32 nm left arrow 45 nm
  • Socket
    FM1 left arrow AM3
  • L2-Cache
    4.00 MB left arrow 2.00 MB
  • Architecture
    Llano left arrow Propus
  • Operating systems
    Windows 10, Linux left arrow Windows 10, Linux
  • Virtualization
    AMD-V left arrow AMD-V
  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • ISA extensions
    MMX, 3DNow!, SSE3, SSE4a left arrow MMX, 3DNow!, SSE3, SSE4a
  • Release date
    Q4/2011 left arrow Q3/2009
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