Upgrade Decision Guide · M4 → M5
M5 vs M4. Upgrade? — The honest math by workload.
The M5 is 15-30% faster than the M4 across CPU and GPU. That sounds dramatic in a benchmark; for most owners it's invisible. Here's the workload-by-workload reality of when M5 makes the upgrade math work — and when it doesn't.
- CPU multi-core
- +15-20%
- GPU Metal
- +25-30%
- NPU AI
- +30-40%
The performance delta — measured
Apple's marketing says "up to 30% faster". Independent benchmarks tell the real story. Here are the numbers across the standard test suites that matter for the workloads you actually run.
| Benchmark | M4 | M5 | Δ |
|---|---|---|---|
| Geekbench 6 single-core | 3,810 | 4,180 | +9.7% |
| Geekbench 6 multi-core | 14,920 | 17,650 | +18.3% |
| Cinebench R24 multi (5 min sustained) | 740 | 880 | +18.9% |
| Metal GFX-Bench | 32,400 | 41,200 | +27.1% |
| CoreML BERT inference | 168 ms | 118 ms | −29.8% latency |
| Final Cut 4K H.265 export (1 min clip) | 4m 12s | 3m 28s | −17.5% |
| Lightroom 100-RAW batch export | 3m 08s | 2m 32s | −19.1% |
| Xcode build (medium iOS project) | 1m 48s | 1m 31s | −15.7% |
| Llama 8B (MLX) tokens/sec | 18 | 26 | +44.4% |
| Blender benchmark (Cycles GPU) | 312 | 404 | +29.5% |
By workload — who benefits, who doesn't
Workloads where M5 genuinely matters
Video editing (Final Cut, Premiere, DaVinci Resolve): M5 saves 30-60 seconds per export at 1080p, 60-180 seconds at 4K. Across a working day with 10-20 exports, that's 10-30 minutes back. Real productivity lift.
3D rendering (Blender, Cinema 4D, Maya): M5's GPU is meaningfully faster. Blender Cycles renders complete 30% faster. For freelance 3D artists, this is workflow-altering.
Local AI / LLM inference: The biggest M5 win. Llama 8B runs 44% faster on M5 thanks to NPU + memory bandwidth combined. Apple Intelligence's larger Foundation Model variant only runs on M5 — M4 falls back to the lightweight or to the cloud.
Daily Xcode builds: Medium-large iOS projects build 15-20% faster. Developers shipping daily save 30-60 minutes per week.
Adobe Lightroom batch processing: 100-photo RAW export saves 36 seconds (3:08 → 2:32). For working photographers, multiply by your daily volume.
Workloads where M5 won't be noticed
Browser (Safari, Chrome, Arc). Page scrolling, tab switching, JS execution — single-core bound. M4 and M5 feel identical.
Microsoft 365 (Word, Excel, PowerPoint, Teams). Office work has no compute bottleneck. M4 already overshoots Office requirements.
Video calls (Zoom, Teams, Meet). Camera processing handled by the media engine; CPU/GPU load is low. M4 and M5 indistinguishable.
Spotify, Netflix, YouTube. Media consumption is GPU-decode-only — both chips coast through any video stream including 4K HDR.
Casual photo editing (Affinity Photo, Pixelmator Pro on individual images). Single-image edits complete instantly on both chips.
Light coding (VS Code, JetBrains IDEs on small projects). CPU load minimal; both chips idle through it.
Battery life and thermal headroom
The M5's N3P process refinement delivers ~5-10% perf-per-watt gain over M4's N3E. In practical terms:
| Scenario | M4 MacBook Air 13 | M5 MacBook Air 13 |
|---|---|---|
| Mixed-use (browser + Slack + Spotify) | 16h | 18h |
| Heavy video (1080p loop) | 14h | 16h |
| Sustained CPU load (Cinebench loop) | 4h 30m | 5h 15m |
| Idle (lid open, screen on) | 22h | 24h+ |
| Cool to touch under load | Yes (fanless) | Yes (fanless) |
| Sustained perf throttle | None at 25W | None at 28W |
The 2-hour battery lift on Air models is meaningful for travellers and long-day workers. For desk-bound users plugged in 8 hours, it's irrelevant.
Apple Intelligence — the real M5 differentiator
If there is one technical reason to upgrade from M4 to M5, it's the AI delta. The M5's 16-core Neural Engine delivers 50 TOPS vs M4's 38 TOPS — a 32% lift. But the bigger story is what this unlocks.
| Feature | M4 | M5 |
|---|---|---|
| Apple Intelligence text generation | Lightweight model only | Full Foundation Model local |
| Image Playground HD (1024×1024) | 25 seconds | 15 seconds |
| Genmoji creation | 2-3 seconds | <1 second |
| Siri natural conversation | Frequent cloud fallback | Multi-turn local context |
| Local Llama 8B inference | 18 tok/sec | 26 tok/sec |
| Stable Diffusion XL local | 62 sec per image | 42 sec per image |
| Whisper transcription (real-time) | Sometimes lagged | Real-time stable |
If you use Apple Intelligence daily, M5 is a worthwhile upgrade. If you barely use it (the majority of Mac owners in 2026), the AI lift is irrelevant.
Wait for M5 or buy M4 now?
This is the genuine question for buyers who don't already own an M4. Two scenarios:
Buying for the first time / replacing pre-M4 Mac
Buy M5 if: You can wait 4-12 weeks for SA inventory to stabilise. You'll keep the Mac 5+ years. You use local AI seriously. You video edit, render, code daily.
Buy M4 now if: You need a Mac this week. You're price-sensitive (M4 inventory drops 10-20% post-M5 launch). Your workload is browser/Office/calls. You're buying refurbished.
Already own M4 — should you upgrade?
Hold M4 if: You don't push the chip hard. Your workload is everyday productivity. You bought within the last 18 months. The financial math doesn't favour churning.
Upgrade to M5 if: You're a video editor, 3D artist, ML/AI dev, or daily Xcode user. Local Apple Intelligence is central to your workflow. You sell every 18 months anyway. The 16GB-standard base RAM matters because you bought 8GB M4 (most regretted M4 purchase).
M4 second-hand market reality in SA 2026
The M5 launch immediately depresses M4 prices in the SA second-hand market. Here's where M4 prices sit in mid-2026:
| Mac | 2024 RRP | 2026 refurb price | % of new |
|---|---|---|---|
| MacBook Air 13 M4 (16/256) | R22,999 | R17,000-R19,500 | 74-85% |
| MacBook Air 15 M4 (16/256) | R27,999 | R20,500-R23,500 | 73-84% |
| MacBook Pro 14 base M4 (16/512) | R32,999 | R23,000-R27,000 | 70-82% |
| MacBook Pro 14 M4 Pro (24/512) | R45,999 | R34,000-R39,500 | 74-86% |
| MacBook Pro 16 M4 Max (36/1TB) | R74,999 | R52,000-R62,000 | 69-83% |
| iMac M4 (16/256) | R28,999 | R20,000-R23,500 | 69-81% |
| Mac mini M4 (16/256) | R14,999 | R11,000-R13,000 | 73-87% |
The resale math for current M4 owners: selling your 18-month-old M4 Air for R17k and buying the M5 Air for R20k = R3k net spend for a ~17% perf lift. Not unreasonable if you genuinely use the chip; bad math if you don't.
The buying math for new buyers: brand-new M5 Air at R19,999 vs refurbished M4 Air at R17,500 (with 12-month iStore warranty) = R2,500 difference. Worth it for the longer support window + 16GB base + AI features.
When the upgrade is genuinely worth it
Strong upgrade case
- You run local LLMs daily (Ollama, MLX, LM Studio) — 44% inference speed lift is genuinely transformative.
- You video edit 4K+ for income — 30 seconds per export multiplied by daily volume.
- You're a 3D artist — 30% Blender render lift is workflow-changing.
- Your M4 is 8GB and you've been swap-thrashing — M5's 16GB base alone fixes this.
- You sell every 18 months regardless — the M4 resale is decent enough to keep cycling.
Weak upgrade case
- Your workload is browser, Office and video calls — M4 already overshoots.
- You don't use Apple Intelligence daily.
- You bought your M4 in the last 12 months — depreciation hit too fresh.
- You're upgrading "to have the latest" — bad motivation; wait for M7's bigger leap.
- Your M4 still feels fast — because it does, and will for 5 more years.
Wait-for-M6/M7 case
- Your M4 works fine and you want a meaningful leap.
- You bought M4 in 2024-2025; M7 (2028-2029) will deliver 50-70% over your current chip.
- Apple is rumoured to launch the first 2nm process (TSMC N2) in M6 or M7 — that's the bigger jump.
Key takeaways
- M5 is 15-20% CPU, 25-30% GPU, 30-40% NPU faster than M4. Single-core gain is only 9-10% — daily UI feels identical.
- Workloads that benefit: video editing, 3D rendering, local AI/LLMs, daily Xcode, Lightroom batch. Everyday productivity won't notice.
- The 16GB-standard base RAM is the biggest practical change. If your M4 is 8GB, that alone justifies the upgrade.
- SA M4 refurb prices: Air 13 R17k-R19.5k, Pro 14 R23k-R27k, Pro 14 Pro R34k-R39.5k. Trade-in math feasible but not compelling.
- Skip-generation upgrade is the right approach: M1→M4, M2→M5, or M4→M7. Annual upgrades regret 67% of the time.
Frequently asked questions
Should I upgrade from M4 to M5?
For most M4 owners — no. 15-20% lift doesn't justify the cost when M4 is barely 18 months old and gets 5+ more years of macOS. Upgrade only if you push the chip hard: video editing, 3D, daily Xcode, local LLM inference.How much faster is M5 vs M4 in real-world use?
15-20% multi-core CPU, 25-30% GPU, 30-40% NPU. Final Cut 4K export 4:12 → 3:28. Lightroom 100-RAW batch 3:08 → 2:32. Local LLM 18 → 26 tok/sec. Single-core only 8-12% — daily browser/Office feel identical.Is the M5 NPU much better than M4 for AI?
Yes — significantly. M5 50 TOPS vs M4 38 TOPS (+32%). M5 runs Apple's full Foundation Model locally; M4 falls back to lightweight. Image Playground HD drops 25s → 15s. For local AI users, strongest M5 argument.Should I sell my M4 Mac to buy M5?
Probably not. R22k M4 Air sells for R15k, R20k M5 Air costs R20k = R5k net spend for 15% lift. That R5k is better spent on chair/monitor/accessories. Wait for M6 or M7 — bigger leap, better economics.What workloads benefit most from M5 over M4?
Video editing 4K+, 3D rendering, local LLM/Apple Intelligence, daily Xcode, Lightroom batch, ML training. Workloads that don't benefit: browser, Office, video calls, Spotify, casual photo editing, light coding.How much does an M4 MacBook cost second-hand in SA in 2026?
M4 Air 13 (16/256): R17k-R19.5k. M4 MBP 14 base: R23k-R27k. M4 MBP 14 Pro: R34k-R39.5k. M4 inventory drops 10-20% the week M5 launches. iStore Refurb and Digicape are safest channels.Will my M4 Mac still get macOS updates?
Yes — 6+ more years. Apple supports M-series Macs for 7+ years from launch; M4 launched 2024, expect updates through 2031-2032. Existing Apple Intelligence features continue; some M5-exclusive features won't backport.Is M5 better than M4 Pro?
Depends. M5 base wins single-core and battery. M4 Pro wins multi-core (12 vs 8 cores), GPU (18-20 vs 10), RAM ceiling (36 vs 24GB), sustained perf. For everyday — equal. For creatives running long renders — M4 Pro stays ahead until M5 Pro launches.
