AMD Phenom II X4 840
AMD Phenom II X4 975
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AMD Phenom II X4 840 vs AMD Phenom II X4 975. Specifications, performance, tests

Overall score
star star star star star
Released
Q1/2011
AMD Phenom II X4 840
AMD Phenom II X4 840
Released
Q1/2011
Overall score
star star star star star
AMD Phenom II X4 975
AMD Phenom II X4 975

What's the best choice AMD Phenom II X4 840 or AMD Phenom II X4 975? Which processor is faster?

We have prepared a comparison to help you choose the best processor. Compare their specifications and benchmarks.

AMD Phenom II X4 840 has a maximum frequency of 3.20 GHz. 4 Cores. Power consumption of 95 W. Released in Q1/2011.

AMD Phenom II X4 975 has a maximum frequency of 3.60 GHz. 4 Cores. Power consumption of 125 W. Released in Q1/2011.

Differences

  • Place in the overall ranking

    (based on several benchmarks)

    1390 left arrow score
  • Performance per watt

    times less performance per watt

    95 W left arrow 125 W

Positions in all rankings

Common positions AMD Phenom II X4 840 CPU in popular benchmarks, for comparison with other models.

  • Cinebench R15 (Single-Core)
    874 place
  • Cinebench R15 (Multi-Core)
    699 place
  • Geekbench 5, 64bit (Single-Core)
    1219 place
  • Geekbench 5, 64bit (Multi-Core)
    1191 place
  • Geekbench 3, 64bit (Single-Core)
    701 place
  • Geekbench 3, 64bit (Multi-Core)
    539 place
  • Cinebench R11.5, 64bit (Single-Core)
    710 place
  • Cinebench R11.5, 64bit (Multi-Core)
    506 place
  • Estimated results for PassMark CPU Mark
    969 place
  • Place in the overall ranking

    (based on several benchmarks)

    1243 left arrow score
  • Higher clock speed

    Around 11% better clock speed

    3.60 GHz left arrow 3.20 GHz

Positions in all rankings

Common positions AMD Phenom II X4 975 CPU in popular benchmarks, for comparison with other models.

  • Cinebench R15 (Single-Core)
    827 place
  • Cinebench R15 (Multi-Core)
    648 place
  • Geekbench 5, 64bit (Single-Core)
    1165 place
  • Geekbench 5, 64bit (Multi-Core)
    1063 place
  • Geekbench 3, 64bit (Single-Core)
    657 place
  • Geekbench 3, 64bit (Multi-Core)
    488 place
  • Cinebench R11.5, 64bit (Single-Core)
    373 place
  • Cinebench R11.5, 64bit (Multi-Core)
    397 place
  • Estimated results for PassMark CPU Mark
    884 place

Specifications

Technical data
AMD Phenom II X4 840 AMD Phenom II X4 840
AMD Phenom II X4 975 AMD Phenom II X4 975
CPU family and group

Background information about the processors being compared, series, generation and market segment.

  • Segment
    Desktop / Server left arrow Desktop / Server
  • Family
    AMD Phenom II left arrow AMD Phenom II
  • Generation
    4 left arrow 4
  • CPU group
    AMD Phenom II - 800/900 left arrow AMD Phenom II - 800/900
CPU Technical specs

Basic parameters such as number of cores, number of threads, base and turbo frequency, and cache size. These parameters indirectly tell about the speed of the processor, the higher they are the better.

  • Frequency
    3.20 GHz left arrow 3.60 GHz
  • CPU Cores
    4 left arrow 4
  • Turbo (1 Core)
    No turbo left arrow No turbo
  • CPU Threads
    4 left arrow 4
  • Turbo (4 Cores)
    No turbo left arrow No turbo
  • Hyperthreading
    No left arrow No
  • Overclocking
    Yes left arrow Yes
  • Core architecture
    normal left arrow normal
IGPU

Internal Graphics does not affect the performance of the CPU, performs the work of the graphics card in its absence or on mobile devices.

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

Built-in codecs used to encode and decode content. Significantly speeds up the required operations.

  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • h264
    No left arrow No
  • VP9
    No left arrow No
  • VP8
    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 specs & PCI

Types, channel quantity of RAM supported by AMD Phenom II X4 975 and AMD Phenom II X4 840. Depending on the motherboards, higher or lower memory frequencies may be supported.

  • Memory type
    DDR2-1066 left arrow DDR2-1066
  • ECC
    No left arrow No
  • Memory channels
    2 left arrow 2
Encryption
  • AES-NI
    No left arrow No
Thermal Management

Compare the TDP requirements of TDP AMD Phenom II X4 840 and AMD Phenom II X4 975 to select a cooling system. Note, the TDP value refers to thermal watts, not electrical watts.

  • TDP (PL1)
    95 W left arrow 125 W
Technologies and extensions

Architecture, interfaces, additional instructions supported by AMD Phenom II X4 840 and AMD Phenom II X4 840, virtual machine technologies and process technology.

  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • Virtualization
    AMD-V left arrow AMD-V
  • ISA extensions
    SSE3, SSE4a left arrow SSE3, SSE4a
  • L3-Cache
    2.00 MB left arrow 6.00 MB
  • Architecture
    Deneb (K10) left arrow Deneb (K10)
  • Technology
    45 nm left arrow 45 nm
  • Socket
    AM3 left arrow AM3
  • Release date
    Q1/2011 left arrow Q1/2011

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between AMD Phenom II X4 840 and AMD Phenom II X4 975.

Compare the synthetic test values and choose the best processor!

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
84
AMD Phenom II X4 840
94
AMD Phenom II X4 975
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
324
AMD Phenom II X4 840
362
AMD Phenom II X4 975
Geekbench 5, 64bit (Single-Core)
Geekbench 5 SC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively
388
AMD Phenom II X4 840
478
AMD Phenom II X4 975
Geekbench 5, 64bit (Multi-Core)
Geekbench 5 MC is a popular cross-platform performance test for desktop or mobile processors that uses system memory intensively
1294
AMD Phenom II X4 840
1587
AMD Phenom II X4 975
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
1709
AMD Phenom II X4 840
1876
AMD Phenom II X4 975
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
5984
AMD Phenom II X4 840
6704
AMD Phenom II X4 975
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
0.97
AMD Phenom II X4 840
1.09
AMD Phenom II X4 975
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
3.82
AMD Phenom II X4 840
4.23
AMD Phenom II X4 975
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
3987
AMD Phenom II X4 840
4631
AMD Phenom II X4 975

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