Apple A5X vs AMD GX-420GI

Last updated:
cpumonkey @ x @cpumonkey

CPU comparison with benchmarks


Apple A5X CPU1 vs CPU2 AMD GX-420GI
Apple A5X AMD GX-420GI

CPU comparison

Apple A5X or AMD GX-420GI - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Apple A5X has 2 cores with 2 threads and clocks with a maximum frequency of 1.00 GHz. Up to 1 GB of memory is supported in 4 memory channels. The Apple A5X was released in Q1/2011.

The AMD GX-420GI has 4 cores with 4 threads and clocks with a maximum frequency of 2.20 GHz. The CPU supports up to 16 GB of memory in 1 memory channels. The AMD GX-420GI was released in Q2/2016.
Apple A series (22) Family AMD G (38)
Apple A5/A5X (2) CPU group AMD G-Series 2nd Gen (11)
5 Generation 2
A5 Architecture Temash (Jaguar+)
Mobile Segment Mobile
-- Predecessor --
Apple A6X Successor --

CPU Cores and Base Frequency

The Apple A5X has 2 CPU cores and can calculate 2 threads in parallel. The clock frequency of the Apple A5X is 1.00 GHz while the AMD GX-420GI has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the AMD GX-420GI is at 2.00 GHz (2.20 GHz).
Apple A5X Characteristic AMD GX-420GI
2 Cores 4
2 Threads 4
normal Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.00 GHz Frequency 2.00 GHz
-- Turbo Frequency (1 Core) 2.20 GHz
-- Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
Apple A5X Characteristic AMD GX-420GI
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The Apple A5X or AMD GX-420GI has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
PowerVR SGX543MP4 (4 Cores) GPU AMD Radeon R7E
0.20 GHz GPU frequency 0.20 GHz
-- GPU (Turbo) 0.63 GHz
-- GPU Generation 3
45 nm Technology 28 nm
1 Max. displays 0
8 Compute units 6
64 Shader 384
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
10 DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
PowerVR SGX543MP4 (4 Cores) GPU AMD Radeon R7E
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

The Apple A5X can use up to 1 GB of memory in 4 memory channels. The maximum memory bandwidth is 12.8 GB/s. The AMD GX-420GI supports up to 16 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 15.0 GB/s.
Apple A5X Characteristic AMD GX-420GI
LPDDR2-800 Memory DDR3-1866
1 GB Max. Memory 16 GB
4 (Quad Channel) Memory channels 1 (Single Channel)
12.8 GB/s Max. Bandwidth 15.0 GB/s
No ECC Yes
1.00 MB L2 Cache 2.00 MB
-- L3 Cache --
-- PCIe version 2.0
-- PCIe lanes 8
-- PCIe Bandwidth 4.0 GB/s

Thermal Management

The thermal design power (TDP for short) of the Apple A5X is --, while the AMD GX-420GI has a TDP of 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Apple A5X Characteristic AMD GX-420GI
-- TDP (PL1 / PBP) 15 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The Apple A5X is manufactured in 32 nm and has 1.00 MB cache. The AMD GX-420GI is manufactured in 28 nm and has a 2.00 MB cache.
Apple A5X Characteristic AMD GX-420GI
32 nm Technology 28 nm
Chiplet Chip design Monolithic
Armv7-A (32 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4a, SSE4.1, SSE4.2, AVX, FMA3, FMA4
-- Socket FP4
None Virtualization AMD-V
No AES-NI Yes
iOS Operating systems Windows 10, Linux
Q1/2011 Release date Q2/2016
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Apple A5X to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:
Here you can rate the AMD GX-420GI to help other visitors make their purchasing decisions. The average rating is 4.0 stars (7 ratings). Rate now:


iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Apple A5X Apple A5X
PowerVR SGX543MP4 (4 Cores) @ 0.20 GHz
26 (5%)
AMD GX-420GI AMD GX-420GI
AMD Radeon R7E @ 0.63 GHz
481 (100%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Apple A5X Apple A5X
2C 2T @ 1.00 GHz
0 (0%)
AMD GX-420GI AMD GX-420GI
4C 4T @ 2.20 GHz
358 (100%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Apple A5X Apple A5X
2C 2T @ 1.00 GHz
0 (0%)
AMD GX-420GI AMD GX-420GI
4C 4T @ 2.00 GHz
842 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Apple A5X Apple A5X
2C 2T @ 1.00 GHz
0 (0%)
AMD GX-420GI AMD GX-420GI
4C 4T @ 2.20 GHz
408 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Apple A5X Apple A5X
2C 2T @ 1.00 GHz
0 (0%)
AMD GX-420GI AMD GX-420GI
4C 4T @ 2.00 GHz
808 (100%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Apple A5X Apple A5X
2C 2T @ 1.00 GHz
0 (0%)
AMD GX-420GI AMD GX-420GI
4C 4T @ 2.00 GHz
1571 (100%)

Devices using this processor
Apple A5X AMD GX-420GI
Apple iPad 2 (3. Gen) Unknown

Popular comparisons containing this CPUs

1. AMD GX-420GIRaspberry Pi 4 B (Broadcom BCM2711) AMD GX-420GI vs Raspberry Pi 4 B (Broadcom BCM2711)
2. Intel Celeron J4105AMD GX-420GI Intel Celeron J4105 vs AMD GX-420GI
3. AMD GX-420GIIntel Core i5-2500 AMD GX-420GI vs Intel Core i5-2500
4. AMD GX-420GIIntel Pentium Silver J5005 AMD GX-420GI vs Intel Pentium Silver J5005
5. AMD GX-420GIIntel Celeron J1900 AMD GX-420GI vs Intel Celeron J1900
6. Apple A5XApple A5 Apple A5X vs Apple A5
7. Intel Celeron J4125AMD GX-420GI Intel Celeron J4125 vs AMD GX-420GI
8. AMD GX-420GIIntel Core i3-6100T AMD GX-420GI vs Intel Core i3-6100T
9. Intel Processor N100AMD GX-420GI Intel Processor N100 vs AMD GX-420GI
10. Apple A5XApple A7 Apple A5X vs Apple A7


back to index