Between the M3 and M5, the M3 comes out ahead in several specs, while the M5 wins on cores and l3 cache. Overall, the M3 scores 43.6 and the M5 scores 46 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (43.6 vs 46). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
The M3 doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the M5 if you care most about cores and l3 cache. Its strongest claims are cores, l3 cache, boost clock, among others.
Both ship with comparable tdp, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Apple - M3 wins
- No decisive advantages.
Why Apple - M5 wins
- ▲Cores — 25.00% more. 10 vs 8.
- ▲L3 cache — 25.00% more. 20 MB vs 16 MB.
- ▲Boost clock — 13.58% more. 4.6 GHz vs 4.05 GHz.
- ▲Cinebench R23 (multi) — 8.33% more. 15600 vs 14400.
Spec comparison
Cores
| Spec | Apple - M3 | Apple - M5 |
|---|---|---|
| Coresⓘ | 8 | 10lead |
| Threadsⓘ | 8 | 10lead |
| Base clockⓘ | 0 GHz | 0 GHz |
| Boost clockⓘ | 4.05 GHz | 4.6 GHzlead |
| L3 cacheⓘ | 16 MB | 20 MBlead |
Platform
| Spec | Apple - M3 | Apple - M5 |
|---|---|---|
| Socketⓘ | Soldered | Soldered |
| TDPⓘ | 22 W | 22 W |
| Integrated graphicsⓘ | true | true |
| DDR5ⓘ | true | true |
Benchmarks
| Spec | Apple - M3 | Apple - M5 |
|---|---|---|
| Cinebench R23 (multi)ⓘ | 14400 | 15600lead |
| Cinebench R23 (single)ⓘ | 1950 | 2150lead |
Spec-level deep dives
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