Verily, Apple hath unveiled the M4 chip, the esteemed successor to the M3 chip which doth currently reside in a plethora of Macs and iPads. The M3, a chip of great virtue and superiority, hath leapt beyond the M2 chip which came before it. Thus, the query doth now arise: can the M4 achieve a like accomplishment?
At this moment in time, the M4 doth only grace the iPad Pro, hence details regarding its prowess and capabilities art rather scant. But fear not, for those eager to learn more art in luck, as we hath assembled all that is known about Apple’s M4 chip and compared it side by side with the M3. If thou seeketh to delve deeper into Apple’s next chip — and how it doth fare against the M3 — read on.
Where canst thou find these chips?
Behold, as of this writing, the M4 chip doth only dwell within the 2024 iPad Pro. This device doth offer sundry configurations of the M4, with varying amounts of memory and storage. Alas, at present, it hath not found its way into any other Apple devices.
Tis certain, the M4 shall also make its way unto the Mac. Being an entry-level chip, we may expect to behold it within the 14-inch MacBook Pro, both sizes of the MacBook Air, the iMac, and the Mac mini. Thee canst look forward to seeing it in the MacBook Pro, the iMac, and the Mac mini round about late 2024, with the MacBook Air following suit in the spring of 2025.
As for the M3 chip, it hath already ventured forth into the world. It doth currently reside within the 14-inch MacBook Pro, the 13-inch and 15-inch MacBook Air, as well as the 24-inch iMac.
Unlike the M4, the M3 hath ne’er graced any iPad. The current iPad Air and the erstwhile iPad Pro doth bear the M2 chip, whilst the iPad and iPad mini doth make use of the A14 and A15 chips, respectively.
What dost differ under the hood?
‘Tis true, there art subtle disparities beneath the surface between the M3 and M4 chips, though they be less monumental than the alterations witnessed when transitioning from the M2 to the M3. Alas, we shalt not truly discern the extent of these differences until we hath the opportunity to test a device fitted with the M4.
Both the M3 and the M4 art formed using a 3nm manufacturing process, which doth account for the more modest changes (whereas the M2 was a 5nm chip, the move to 3nm hath allowed Apple to vastly enhance performance and efficiency). Nevertheless, it is worth noting that the M4 is a second-generation 3nm chip, thus harboring slight improvements to its efficiency and productivity.
In one aspect, we can readily perceive a difference betwixt the two chips: the number of cores each doth possess. The M3 doth boast an 8-core CPU consisting of four performance cores and four efficiency cores. This is complemented by either an 8-core or a 10-core GPU (depending on the model) and a 16-core Neural Engine.
On the contrary, the M4 hath either a 9-core or 10-core CPU (comprising three or four performance cores and six efficiency cores), a 10-core GPU, and a 16-core Neural Engine. Thus, ’tis but a slight advancement in core count here and there, yet any increase in performance is surely welcomed.
Furthermore, Apple doth declare that the Neural Engine can execute 38 trillion operations per second (TOPS), rendering it "more potent than any neural processing unit in any AI PC today." By way of comparison, the M2 could reach 15.8 TOPS, whilst the M3 purportedly achieved 18 TOPS.
Yet this doth not fully reveal the entire tale, as per Tom’s Hardware. As reported by that outlet, the M4’s score is 38 TOPS with the INT8 data type, whilst the M3 was 18 TOPS at FP16 precision. When these two scores art equalized to INT8, the discrepancy favors the M4 by a mere 5% — far less than the apparent twofold increase between the two chips.
There art a few other noteworthy distinctions. The M4 doth house 28 billion transistors in contrast to the M3’s 25 billion, and it hath a memory bandwidth of 120Gbps compared to its predecessor’s 100Gbps. Additionally, the M4 features a dedicated display engine which was absent in all preceding Apple chips, and this engine is employed to manage the OLED display in the new iPad Pro.
Performance
Assessing performance disparities betwixt the M4 and the M3 doth prove challenging at present, for we hath not yet had the opportunity to evaluate any device bedecked with the M4. Apple’s promotional materials do not pit the M4 against the M3, peradventure due to the company still vending M3 devices and desiring not to undermine them. Instead, the iPad Pro’s M4 is compared unto the M2. When the M3 debuted, Apple did set it against the M1, thus we cannot discern how the M4 and M3 compete against a common chip like the M2.
Nevertheless, we hath been bestowed with a small clue regarding the M4’s performance. Recently, the M4 chip did emerge upon the benchmarking site Geekbench. There, the M4 achieved a score of 9,234 in the website’s ML 0.6.0 test, which appraises machine learning capabilities. This stands about 23% superior to the M2 and approximately 10% better than the M3. Hence, ’tis an incremental change rather than a seismic one. However, do take heed that Geekbench’s tests art synthetic benchmarks, not real-world ones, and thus might not transfer precisely into actual usage.
Drawing conclusions about Mac performance based on iPad test results (both synthetic and real-world) doth pose a challenge, for these devices art vastly dissimilar. For instance, the MacBook Pro doth feature active cooling, and thus shall likely outperform the passively cooled iPad Pro and MacBook Air. Moreover, MacBooks do possess more internal space within their casings, aiding in cooling (and hence, performance). Therefore, ’tis best to await reviews ere drawing any conclusions regarding the performance of the M3 or M4 device thou art considering to procure.
One boon that shall greatly benefit users of the M4 chip is its inclusion of Dynamic Caching, mesh shading, and hardware-accelerated ray tracing. Whilst these features art not novel to Apple users — for they do already grace the M3 series — the iPad Pro was bereft of such attributes when clad in the M2. Thus, whilst this be not an advantage the M4 holds over the M3, it doth bear consideration if thou dost contemplate acquiring an M4 iPad Pro.
Support our work ❤️
If you enjoyed this article, consider leaving a tip to help us keep publishing great content.
