AMD Phenom II X2 521
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Overall score
star star star star star
Released
Q2/2011
AMD Phenom II X2 521

Processor AMD Phenom II X2 521, specifications and benchmarks

1256 place in the overall ranking CPUs!
The AMD Phenom II X2 521 processor is installed in AM3 socket boards and operates at a frequency of 3.50 GHz. The AMD Phenom II X2 521 has a total of 2 cores. Release date: Q2/2011. TDP is 65 W. This review will provide all the technical specifications and detailed data about the AMD Phenom II X2 521 processor. Discover everything to determine whether a game or software will run on AMD Phenom II X2 521.

AMD Phenom II X2 521 Specifications

Technical data
CPU Family and Group

This section provides a comprehensive overview of the processors generation and family, explaining the specific market segment it is designed for. It covers key details such as the CPUs position within its product lineup, its intended use cases (e.g., consumer, server, or workstation), and how its generation compares to previous models.

  • Segment
    Desktop / Server
  • Family
  • Generation
    1
  • CPU group
    AMD Phenom II - 500
  • Predecessor
    --
  • Successor
    --
CPU Technical Specs

AMD Phenom II X2 521. This section highlights key performance parameters of the processor, including the number of cores, threads, and clock speeds (base and boost frequencies). These metrics directly impact multitasking capabilities and overall system performance in both single-threaded and multi-threaded applications.

  • Frequency
    3.50 GHz
  • CPU Cores
    2
  • Turbo (1 Core)
    No turbo
  • CPU Threads
    2
  • Turbo (2 Cores)
    No turbo
  • Hyperthreading
    No
  • Overclocking
    Yes
  • Core architecture
    normal
  • A core
    --
  • B core
    --
  • C core
    --
IGPU

This section provides details on the integrated graphics capabilities of the processor. It covers the architecture, performance characteristics, and supported technologies (e.g., DirectX, OpenGL), which are essential for systems without dedicated GPUs or for mobile devices that require energy-efficient graphics processing.

  • GPU name
    no iGPU
  • GPU frequency
  • GPU (Turbo)
    No turbo
  • Execution units
  • Shader
  • Max. GPU Memory
    --
  • Max. displays
  • Generation
  • DirectX Version
  • Technology
  • Release date
Hardware codec support

This section covers the built-in hardware codec support for video and image processing. The processor’s ability to handle codecs like H.264, HEVC, and VP9 directly influences its performance in tasks such as video playback, editing, and streaming. This hardware acceleration ensures smoother media handling with lower CPU utilization.

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

This section breaks down the technical characteristics of the memory supported by the processor, including the types (e.g., DDR4, DDR5), number of memory channels, and maximum supported memory speed. It also covers PCI Express support, which determines the bandwidth available for GPUs, SSDs, and other peripherals, critical for high-performance systems.

  • Memory type
    DDR2-1066
  • Max. Memory
  • ECC
    No
  • Memory channels
    2
  • PCIe version
  • PCIe lanes
Encryption

This section focuses on the hardware-based security technologies integrated into the processor. These include encryption support features such as AES-NI, Intel SGX, and AMD Secure Memory Encryption, which provide robust protection for sensitive data and help mitigate cybersecurity risks.

  • AES-NI
    No
Thermal Management
  • TDP (PL1)
    65 W
  • TDP up
    --
  • TDP (PL2)
    --
  • TDP down
    --
  • Tjunction max.
    --
* see below
Technologies and Extensions

This section explains the underlying technologies that enable the processor to deliver high performance. It includes details about the manufacturing process (e.g., 7nm, 10nm), supported instruction sets (e.g., AVX, SSE), and virtual machine extensions that enhance compatibility and efficiency across various workloads.

  • Instruction set (ISA)
    x86-64 (64 bit)
  • Virtualization
    AMD-V
  • ISA extensions
    SSE3, SSE4a
  • L2-Cache
    --
  • L3-Cache
    2.00 MB
  • Architecture
    Regor (K10)
  • Technology
    45 nm
  • Socket
    AM3
  • Release date
    Q2/2011
  • Part Number
    --
Positions in all rankings

Common positions AMD Phenom II X2 521 CPU in popular benchmarks, for comparison with other models.

  • Cinebench R15 (Single-Core)
    839 place
  • Cinebench R15 (Multi-Core)
    924 place
  • Geekbench 3, 64bit (Single-Core)
    655 place
  • Geekbench 3, 64bit (Multi-Core)
    735 place
  • Cinebench R11.5, 64bit (Single-Core)
    125 place
  • Cinebench R11.5, 64bit (Multi-Core)
    643 place
  • Estimated results for PassMark CPU Mark
    1177 place

AMD Phenom II X2 521 Benchmarks

Performance tests CPU

Compare the benchmark scores of AMD Phenom II X2 521 with other processors to gauge its real-world performance across various tasks..

These tests encompass tasks such as mathematical calculations, 3D rendering, cryptocurrency mining, and performance evaluations in both single-core and multi-core modes.

Cinebench R15 (Single-Core)
The Cinebench R15 SC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware
Cinebench R15 (Multi-Core)
The Cinebench R15 MC stresses the computing modules of a desktop or laptop computer to their limits and accurately determines the key performance parameters of the hardware
182
181
180
177
AMD Phenom II X2 521
Geekbench 3, 64bit (Single-Core)
Geekbench 3 SC for one CPU core, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
1892
1892
1892
1888
AMD Phenom II X2 521
Geekbench 3, 64bit (Multi-Core)
Geekbench 3 MC using a multi-core and hyperthreading, includes stress tests simulating real 3D scenarios for Windows, Mac, Linux, Ansroid, iOS
3515
3515
3498
3480
AMD Phenom II X2 521
Cinebench R11.5, 64bit (Single-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in single-core mode, based on CINEMA 4D
1.07
1.07
1.07
1.06
AMD Phenom II X2 521
Cinebench R11.5, 64bit (Multi-Core)
The PC CPU and GPU test involves rendering a specific 3D scene in multi-core mode and hyperthreading, based on CINEMA 4D
2.14
2.09
2.09
2.08
AMD Phenom II X2 521
Estimated results for PassMark CPU Mark
PassMark is a test suite that performs complex mathematical calculations to determine CPU performance on file compression, encryption and physics-related tasks
2270
2268
2256
2253
AMD Phenom II X2 521

Synonyms

Similar processors in terms of performance.

Similar in technical data processors with AMD Phenom II X2 521.

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AMD Phenom II X2 B59 View
Apple A9X View
Intel Core i7-3820QM View

*

PL1 - The power limit (in watts) generated by the processor (or GPU) during sustained, standard operation. It represents the typical thermal output during normal workloads.

PL2 - Represents the maximum power limit under heavy load or overclocking conditions. It indicates the thermal output during peak performance.

These values are essential for determining the optimal cooling system and power supply required to maintain stable performance.

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AMD Phenom II X2 521

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