AMD RX-421BD vs AMD RX-421ND

Let's find out which one of AMD RX-421ND and AMD RX-421BD is of a more recent generation, and what segment it belongs to.

• Name
  AMD RX-421ND AMD RX-421BD
• Family
  AMD R AMD R
• CPU group
  AMD RX 1st Gen. AMD RX 1st Gen.
• Segment
  Mobile Mobile
• Generation
  1 1

In this block we are going to compare AMD RX-421ND vs AMD RX-421BD 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 4 / 4
• Core architecture
  normal normal
• Cores
  4x 4x
• Hyperthreading / SMT
  No No
• Overclocking
  No No
• Frequency
  2.10 GHz 2.10 GHz
• Turbo Frequency (1 Core)
  3.40 GHz 3.40 GHz

Common specifications for integrated graphics cards in AMD RX-421ND and AMD RX-421BD along with supported interfaces and connection options. This block has no effect on the final efficiency of the CPU.

• GPU name
  no iGPU AMD Radeon R7 - 512 (Merlin Falcon)
• GPU frequency
  0.80 GHz
• GPU (Turbo)
  No turbo No turbo
• Execution units
  8
• Shader
  512
• Max. GPU Memory
  -- 2 GB
• Max. displays
  3
• Generation
  3
• Direct X
  -- 12
• Technology
  28
• Release date
  2015

Let's compare the support of video codecs between AMD RX-421ND and AMD RX-421BD. Hardware support of video decoding by embedded graphics cards directly affects the speed and quality of rendering videos.

• h265 / HEVC (8 bit)
  No Decode
• h265 / HEVC (10 bit)
  No No
• h264
  No Decode / Encode
• VP8
  No No
• VP9
  No No
• AV1
  No No
• AVC
  No No
• VC-1
  No No
• JPEG
  No Decode

To choose the best model between AMD RX-421ND and AMD RX-421BD 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
  DDR3-2133, DDR4-2400 DDR3-2133, DDR4-2400
• Memory channels
  2 (Dual Channel) 2 (Dual Channel)
• ECC
  Yes Yes
• PCIe
  3 x 12 3 x 12
• AES-NI
  Yes Yes

Let's find out what TDP value would be better for AMD RX-421ND or AMD RX-421BD? 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)
  35 W 35 W
• TDP down
  12 W 12 W
• Tjunction max.
  90 \xc2\xb0C 90 \xc2\xb0C

Here you can find a comparison of 2nd and 3rd level cache sizes for AMD RX-421ND and AMD RX-421BD CPUs along with a list of ISA extensions.

• Technology
  28 nm 28 nm
• Socket
  FP4 FP4
• L2-Cache
  2.00 MB 2.00 MB
• Architecture
  Merlin Falcon (Excavator) Merlin Falcon (Excavator)
• Virtualization
  AMD-V, AMD-Vt AMD-V, AMD-Vt
• Instruction set (ISA)
  x86-64 (64 bit) x86-64 (64 bit)
• ISA extensions
  SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4 SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
• Release date
  Q4/2015 Q4/2015
• Part Number
  RE421NAAY43KA RE421BAAY43KA