Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Apple - M3 | Apple - M4 Pro |
|---|---|---|
| Cores | 8 | 14 |
| Cinebench R23 (multi) | 14400 | 23800 |
| L3 cache | 16 MB | 24 MB |
| TDP | 22 W | 40 W |
| Boost clock | 4.05 GHz | 4.5 GHz |
Between the M3 and M4 Pro, the M3 comes out ahead in tdp, while the M4 Pro wins on cores / cinebench r23 (multi). Overall, the M3 scores 43.6 and the M4 Pro scores 49.6 on our Mars Score.
Which should you buy?
The M4 Pro edges ahead on the Mars Score (43.6 vs 49.6), but the 6.0-point gap is small enough that the right pick comes down to which spec advantages matter to you.
Pick the M3 if you care most about tdp. The biggest gaps in its favor are tdp. The single most decisive one: TDP — 18.00 W less. 22 vs 40.
Pick the M4 Pro if you push the hardware — gaming, on-device AI, heavy multitasking — and the extra compute headroom is worth the trade-offs. Its strongest claims are cores, cinebench r23 (multi), l3 cache, among others. The single most decisive one: Cores — 75.00% more. 14 vs 8.
There are no meaningful ties on the headline specs — every popular-comparison metric has a winner.
Bottom line: the M4 Pro is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Apple - M3 or Apple - M4 Pro?
Apple - M4 Pro leads the current Mars Score by 6.0 points.The more useful decision is the trade-off behind that result: compare cores, boost clock, tdp against the way you will actually use the product.
Choose Apple - M3 if…
Apple - M3 has the measurable edge on tdp w.
Choose Apple - M4 Pro if…
Apple - M4 Pro has the measurable edge on core count, cinebench r23 multi, cache l3 mb.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Apple - M3 wins
- ▲TDP — 18.00 W less. 22 vs 40.
Why Apple - M4 Pro wins
- ▲Cores — 75.00% more. 14 vs 8.
- ▲Cinebench R23 (multi) — 65.28% more. 23800 vs 14400.
- ▲L3 cache — 50.00% more. 24 MB vs 16 MB.
- ▲Boost clock — 11.11% more. 4.5 GHz vs 4.05 GHz.
Spec comparison
Cores
| Spec | Apple - M3 | Apple - M4 Pro |
|---|---|---|
| Coresⓘ | 8 | 14lead |
| Threadsⓘ | 8 | 14lead |
| Base clockⓘ | 0 GHz | 0 GHz |
| Boost clockⓘ | 4.05 GHz | 4.5 GHzlead |
| L3 cacheⓘ | 16 MB | 24 MBlead |
Platform
| Spec | Apple - M3 | Apple - M4 Pro |
|---|---|---|
| Socketⓘ | Soldered | Soldered |
| TDPⓘ | 22 Wlead | 40 W |
| Integrated graphicsⓘ | true | true |
| DDR5ⓘ | true | true |
Benchmarks
| Spec | Apple - M3 | Apple - M4 Pro |
|---|---|---|
| Cinebench R23 (multi)ⓘ | 14400 | 23800lead |
| Cinebench R23 (single)ⓘ | 1950 | 2260lead |