Apple M4 Max (14 cores) vs Apple A6x vs Apple A18

Apple M4 Max (14 cores)

The 14-core Apple M4 Max is a powerful ARM architecture processor (SoC) for laptops and mini-PCs that debuted in Sep 2024. It features 10 performance CPU cores running at well over 4 GHz along with 4 efficient cores running at under 3 GHz. The 32-core M4 Max GPU and at least 36 GB of fast 410 GB/s LPDDR5x on-package memory depending on the configuration are included as well, as is USB 4 and Thunderbolt 5 support.

The built-in 16 core neural engine (up to 38 TOPS) is found across the whole M4 chip family. Furthermore, all M4 processors are thought to be based on the ARM v9.4-A architecture to a certain degree.

Performance

The M4 Max is set to be just a bit faster than the 14-core M4 Pro, meaning it outguns the 16-core M3 Max by a small margin. This is nothing to scoff at, yet it's the new integrated graphics adapters that are the real stars of the show.

Graphics

The 32-core M4 Max GPU has hardware support for ray tracing as well as mesh shading and other modern technologies. It supports external displays with resolutions as high as "8K" and it can HW-decode a few popular video codecs such as h.264, h.265 and AV1.

Its gaming performance is set to be about as good the GeForce RTX 4050 Laptop. Please keep in mind that very few games have been compiled specifically for Apple silicon Macs meaning most titles have to be run via emulation layers. Some of them are displayed with visual artefacts as a result, or don't start at all.

Power consumption

The slower M4 Pro (14 cores) consumes around 80 W when under full load but is happy with just 2 W to 7 W when idling. We presume the 14-core M4 Max needs just slightly more juice than its slower brother to keep going.

The 2nd generation 3 nm TSMC process the M4 Max is built with delivers good power efficiency, as of late 2024.

Apple A6x

The Apple A6x is a dual-core-SoC (System on a Chip) with ARM compatible CPU cores (ARMv7s instruction set). Both can be clocked at up to 1400 MHz depending on the load. It is used in the iPad 4 and compared to the A6 in the iPhone 5, the A6x offers a faster GPU (PowerVR SGX544MP4).

The CPU-Performance of the A6x is similar to the Qualcomm Snapdragon S4 Pro MSM8960T, while the GPU is about as fast as the Adreno 320.

Apple A18

The Apple A18 is a powerful smartphone processor and formal successor to the A16. This new member of the Apple A processor series debuted in September 2024 alongside the iPhone 16 and iPhone 16 Plus; it features 2 performance cores and 4 efficient cores along with a 35 TOPS NPU and the 5-core A18 GPU.

The chip is normally paired with 8 GB of RAM. It is said to be in large part based on the v9.2A ARM microarchitecture for near-Apple M4 IPC. 5G, Wi-Fi 7, Bluetooth 5.3, various satellite navigation systems and NFC are all supported here.

The more expensive A18 Pro SoC has the same 2 P-cores and 4 E-cores running at slightly higher clock speeds; its graphics adapter is on the other hand significantly faster than what the A18 has. Another crucial little detail is that USB 3.x support is either missing, or disabled somehow on the A18 for USB 2.0 speeds only whereas the A18 Pro has no such issue.

Performance

Multi-threaded benchmarks put it in the same ballpark as the Snapdragon 8 Gen 3 and the Dimensity 9300. As expected from Apple, the A-series processor delivers breathtaking single-thread performance that just about matches the significantly more power-hungry Apple M3 chip. This suggests the P-cores can almost hit the 4 GHz mark when required.

Graphics

Like any modern graphics adapter, the 5-core A18 GPU is RT-enabled. It delivers benchmark scores that are most comparable to the G715 MP11 and the G615 MP6.

Power consumption

It appears the chip is able to briefly consume up to about 9 W when under high load, with average sustained power consumption figures hovering around 3-4 W.

The pretty modern TSMC N3E manufacturing process makes the A-series chip very power-efficient, as of late 2024.