Apple A9X vs AMD RX-421BD

Comparative analysis of Apple A9X and AMD RX-421BD processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Graphics API support, Compatibility, Peripherals, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the Apple A9X

  • CPU is newer: launch date 10 month(s) later
  • A newer manufacturing process allows for a more powerful, yet cooler running processor: 16 nm vs 28 nm
  • Around 50% more L2 cache; more data can be stored in the L2 cache for quick access later
Launch date 7 Sep 2016 vs 21 October 2015
Manufacturing process technology 16 nm vs 28 nm
L2 cache 3 MB (shared) vs 2 MB

Reasons to consider the AMD RX-421BD

  • 2 more cores, run more applications at once: 4 vs 2
  • 2 more threads: 4 vs 2
  • Around 150342% higher clock speed: 3400 MHz vs 2.26 GHz
  • 2560x more L1 cache, more data can be stored in the L1 cache for quick access later
Number of cores 4 vs 2
Number of threads 4 vs 2
Maximum frequency 3400 MHz vs 2.26 GHz
L1 cache 320 KB vs 64 KB instruction + 64 KB data (per core)

Compare benchmarks

CPU 1: Apple A9X
CPU 2: AMD RX-421BD

Name Apple A9X AMD RX-421BD
PassMark - Single thread mark 1510
PassMark - CPU mark 2517
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 3.817
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 10.518
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.189
CompuBench 1.5 Desktop - Video Composition (Frames/s) 0.608
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 4.623
GFXBench 4.0 - Car Chase Offscreen (Frames) 8
GFXBench 4.0 - Manhattan (Frames) 1942
GFXBench 4.0 - T-Rex (Frames) 7025
GFXBench 4.0 - Car Chase Offscreen (Fps) 8
GFXBench 4.0 - Manhattan (Fps) 1942
GFXBench 4.0 - T-Rex (Fps) 7025

Compare specifications (specs)

Apple A9X AMD RX-421BD

Essentials

Architecture codename Twister Merlin Falcon
Launch date 7 Sep 2016 21 October 2015
OS Support iOS 9.1, iOS 15.7.5, iPadOS 16.4.1, tvOS 16.2
Place in performance rating 1697 1721
Processor Number APL1W24 RX-421BD
Family AMD R-Series
Vertical segment Embedded

Performance

Base frequency 2.16 GHz 2100 MHz
L1 cache 64 KB instruction + 64 KB data (per core) 320 KB
L2 cache 3 MB (shared) 2 MB
Manufacturing process technology 16 nm 28 nm
Maximum frequency 2.26 GHz 3400 MHz
Number of cores 2 4
Number of threads 2 4
Transistor count 3 billion
64 bit support
Die size 1073 mm2

Memory

Max memory channels 2 2
Maximum memory bandwidth 51.2 GB/s 38.4 GB/s
Maximum memory size 4 GB
Supported memory types LPDDR4-3200 DDR3-2133, DDR4-2400
ECC memory support

Graphics

Execution Units 48
Graphics base frequency 650 MHz 800 MHz
iGPU core count 12
Processor graphics Custom PowerVR Series7XT Radeon R7 series
Number of pipelines 512
Unified Video Decoder (UVD)
Video Codec Engine (VCE)

Graphics interfaces

DisplayPort
DVI
eDP
HDMI
Number of displays supported 3

Graphics API support

DirectX 12
OpenGL 4.4

Compatibility

Configurable TDP 12-35 Watt
Package Size micro-BGA
Sockets supported BGA (FP4)
Thermal Design Power (TDP) 35 Watt

Peripherals

PCI Express revision 3.0
UART
USB revision 3.0

Advanced Technologies

Enhanced Virus Protection (EVP)
Fused Multiply-Add 3 (FMA3)
Fused Multiply-Add 4 (FMA4)
Intel® Advanced Vector Extensions (AVX)
Intel® Advanced Vector Extensions 2 (AVX2)
Intel® AES New Instructions

Virtualization

AMD Virtualization (AMD-V™)