AMD Athlon II X4 651K
Intel Celeron G1840
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AMD Athlon II X4 651K vs Intel Celeron G1840. Specifications, performance, tests

User rating
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Released
Q4/2011
AMD Athlon II X4 651K
AMD Athlon II X4 651K
Released
Q2/2014
User rating
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Intel Celeron G1840
Intel Celeron G1840

What's the best choice AMD Athlon II X4 651K or Intel Celeron G1840? Which processor is faster?

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

AMD Athlon II X4 651K has a base frequency of 3.00 GHz. 4 / 4 CPU Cores / Threads. Stated TDP / base power 100 W. Released in Q4/2011.

Intel Celeron G1840 has a base frequency of 2.80 GHz. 2 CPU Cores / Threads. Stated TDP / base power 53 W. Released in Q2/2014.

Differences

  • Higher clock speed

    Around 7% better clock speed

    3.00 GHz left arrow 2.80 GHz
  • More number of cores

    2 more cores

    4 left arrow 2

Positions in all rankings

Common positions AMD Athlon II X4 651K CPU in popular benchmarks, for comparison with other models.

  • Geekbench 5, 64bit (Single-Core)
    1044 place
  • Geekbench 5, 64bit (Multi-Core)
    888 place
  • Lower stated TDP / base power

    Power limits alone do not measure performance per watt.

    53 W left arrow 100 W

Positions in all rankings

Common positions Intel Celeron G1840 CPU in popular benchmarks, for comparison with other models.

  • Cinebench R15 (Single-Core)
    753 place
  • Cinebench R15 (Multi-Core)
    883 place
  • Geekbench 5, 64bit (Single-Core)
    881 place
  • Geekbench 5, 64bit (Multi-Core)
    1053 place
  • iGPU - FP32 Performance (Single-precision GFLOPS)
    1362 place
  • Geekbench 3, 64bit (Single-Core)
    532 place
  • Geekbench 3, 64bit (Multi-Core)
    657 place
  • Cinebench R11.5, 64bit (Single-Core)
    491 place
  • Cinebench R11.5, 64bit (Multi-Core)
    621 place
  • Cinebench R11.5, 64bit (iGPU, OpenGL)
    271 place
  • Estimated results for PassMark CPU Mark
    927 place

Specifications

Technical data
AMD Athlon II X4 651K AMD Athlon II X4 651K
Intel Celeron G1840 Intel Celeron G1840
CPU family and group

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

  • CPU group
    AMD Athlon II X4 (Llano) left arrow Intel Celeron G1000
  • Family
    AMD Athlon II left arrow Intel Celeron
  • Generation
    2 left arrow 3
  • Segment
    Desktop / Server left arrow Desktop / Server
CPU Technical specs

Core counts, threads, cache and clock modes describe the CPU configuration. Performance depends on the workload and comparable measured results.

  • Base Frequency
    3 GHz left arrow 2.8 GHz
  • Core architecture
    normal left arrow normal
  • Core Configuration
    4x left arrow -
  • CPU Cores
    4 left arrow 2
  • CPU Threads
    4 left arrow 2
  • Hyperthreading / SMT
    No left arrow No
  • Overclocking
    Yes left arrow No
  • Turbo Frequency (1 Core)
    - left arrow No turbo
  • Turbo Frequency (2 Cores)
    - left arrow No turbo
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.

  • DirectX Version
    - left arrow 11.1
  • Execution units
    - left arrow 10
  • Generation
    - left arrow 7.5
  • GPU Frequency
    - left arrow 350 MHz
  • GPU name
    no iGPU left arrow Intel HD Graphics (Haswell GT1)
  • GPU Turbo
    No turbo left arrow 1050 MHz
  • Max. displays
    - left arrow 3
  • Release date
    - left arrow Q4/2012
  • Shader
    - left arrow 80
  • Technology
    - left arrow 22 nm
Hardware codec support

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

  • AV1
    No left arrow No
  • H.264 / AVC
    No left arrow Decode / Encode
  • h265 / HEVC (8 bit)
    No left arrow No
  • h265 / HEVC (10 bit)
    No left arrow No
  • JPEG
    No left arrow Decode
  • VC-1
    No left arrow Decode
  • VP8
    No left arrow No
  • VP9
    No left arrow No
Memory specs & PCI

Types, channel quantity of RAM supported by Intel Celeron G1840 and AMD Athlon II X4 651K. Depending on the motherboards, higher or lower memory frequencies may be supported.

  • ECC
    No left arrow Yes
  • Max. Memory
    16 GB left arrow -
  • Memory Bandwidth
    21.3 GB/s left arrow -
  • Memory channels
    2 left arrow 2
  • Memory type
    DDR3-1333 left arrow DDR3-1333
  • PCIe
    2.0 left arrow -
  • PCIe lanes
    - left arrow 16
  • PCIe version
    - left arrow 3.0
Encryption
  • AES-NI
    No left arrow Yes
Thermal Management

Compare the TDP requirements of TDP AMD Athlon II X4 651K and Intel Celeron G1840 Power specifications describe different manufacturer limits. TDP, base power and maximum turbo power are separate values; they do not establish measured system consumption.

  • TDP (PL1, legacy label)
    100 W left arrow 53 W
Technologies and extensions

Architecture, interfaces, additional instructions supported by AMD Athlon II X4 651K and Intel Celeron G1840, virtual machine technologies and process technology.

  • Architecture
    Llano left arrow Ivy Bridge S
  • Instruction set (ISA)
    x86-64 (64 bit) left arrow x86-64 (64 bit)
  • ISA extensions
    MMX, 3DNow!, SSE3, SSE4a left arrow SSE4.1, SSE4.2
  • L2-Cache
    4 MB left arrow -
  • L3-Cache
    - left arrow 2 MB
  • Release date
    Q4/2011 left arrow Q2/2014
  • Socket
    FM1 left arrow LGA 1150
  • Technology
    32 nm left arrow 22 nm
  • Virtualization
    AMD-V left arrow VT-x, VT-x EPT, VT-d

Benchmarks

Performance tests CPUs

Based on the results of several benchmarks, you can more accurately estimate the difference in performance between AMD Athlon II X4 651K and Intel Celeron G1840.

Compare the synthetic test values and choose the best processor!

These are saved results from the earlier catalog. Measurement dates and test configurations were not recorded. Models with no comparable results are omitted.

Recent models: test results with identified primary sources — Cinebench R23 · Cinebench R20 · Cinebench R15 · Cinebench 2026 · RandomX benchmark

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

Higher values are better in this metric.

411.000000
AMD Athlon II X4 651K
579.000000
Intel Celeron G1840
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

Higher values are better in this metric.

1467.000000
AMD Athlon II X4 651K
1067.000000
Intel Celeron G1840

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