Sunk Cost sunkcost.ai Data checked 2026-09-03

MacBook Pro M5 Pro (16-inch), 24GB vs Mac Studio M5 Max, 48GB for local AI

The Mac Studio M5 Max, 48GB holds 27 of the 39 open models here, and the MacBook Pro M5 Pro (16-inch), 24GB holds 13. The MacBook Pro M5 Pro (16-inch), 24GB costs $100 less. On Gemma 4 12B, the strongest model both hold, the Mac Studio M5 Max, 48GB is about 2× faster: 58 tok/s against 29, both estimated from memory bandwidth. The Mac Studio M5 Max, 48GB pays for itself sooner, in 39 years against 239 years at 500k tokens a day, though that is each machine on its own strongest model rather than on the same one.

MacBook Pro M5 Pro (16-inch), 24GBMac Studio M5 Max, 48GB
Price$2,999$3,099
Memory24 GB48 GB
Usable by the GPU16 GB36 GB
Memory bandwidth307 GB/s614 GB/s
Power under load140 Wstand-in145 Wstand-in
Models that fit1327
Best model it runsGemma 4 12BQwen3.8 27B
Speed on that model29 tok/s estimatedGemma 4 12B25 tok/s estimatedQwen3.8 27B
Pay-back on that modelPays back in 239 yearsPays back in 39 years

Neither power figure above is measured on the machine beside it. Both are stand-ins borrowed from the nearest hardware the data does have, so the gap between them is not a difference between these two machines. Each machine's page names the figure it borrows and why. Every pay-back figure on this page prices its electricity from these numbers.

Run the numbers on the MacBook Pro M5 Pro (16-inch), 24GB · or the Mac Studio M5 Max, 48GB

The same money, two different machines

These two cost within $100 of each other: $2,999 for the MacBook Pro M5 Pro (16-inch), 24GB and $3,099 for the Mac Studio M5 Max, 48GB. Both are Apple machines, but a MacBook Pro and a Mac Studio are two different machines rather than two sizes of one. Every other head-to-head on this site holds a piece of the hardware equal and asks what the price gap buys. This one holds the price, so the row that usually carries the answer is the row the two machines agree on, and everything under it is what the same money buys twice.

Side by side on Gemma 4 12B

The table above gives each machine the strongest model it can hold, and those are not the same model, so the two speeds in it are not a race. Gemma 4 12B is the strongest model both machines hold, so this is the pair running the same work.

MacBook Pro M5 Pro (16-inch), 24GBMac Studio M5 Max, 48GB
Speed29 tok/s estimated58 tok/s estimated
Pay-backPays back in 239 yearsPays back in 224 years

Run Gemma 4 12B on the MacBook Pro M5 Pro (16-inch), 24GB · or on the Mac Studio M5 Max, 48GB

How much use it takes to pay back

Everything above is at 500k tokens a day. Pay-back moves with how much you actually run, so here are both machines on the same model, at the five levels of use the calculator names. The Mac Studio M5 Max, 48GB pays back sooner at every level of use, so this is not a choice that turns on how hard you work it.

A day's useMacBook Pro M5 Pro (16-inch), 24GBMac Studio M5 Max, 48GB
50ka few chats a day2,387 years2,242 years
200klight assistant use597 years560 years
1Ma moderate coding-assistant day119 years112 years
4Mheavy coding with an agent30 years28 years
20Magents running most of the day6.0 years5.6 years

Run the MacBook Pro M5 Pro (16-inch), 24GB at 20M tokens a day · or the Mac Studio M5 Max, 48GB

What the extra memory buys

The Mac Studio M5 Max, 48GB holds 14 models the MacBook Pro M5 Pro (16-inch), 24GB cannot at 32k of context. The strongest of them are what the difference in memory actually buys.

ModelWeightsNeeds at 32kOn the Mac Studio M5 Max, 48GB
Qwen3.8 27BSonnet-class16 GB19 GB25 tok/s estimated
Qwen3.6 27BHaiku-class17 GB19 GB24 tok/s estimated
Qwen3.6 35B-A3BHaiku-class22 GB23 GB73 tok/s estimated
Muse Glimmer 30BHaiku-class17 GB18 GB26 tok/s estimated
Gemma 4 26B-A4BHaiku-class17 GB18 GB54 tok/s estimated
Gemma 4 31B itHaiku-class20 GB26 GB18 tok/s estimated

8 more, on the Mac Studio M5 Max, 48GB page.

The extra memory buys context as well. Of the 13 models both machines hold at 32k, 3 run to a longer window on the Mac Studio M5 Max, 48GB: the weights are a fixed size and the KV cache is not, so what the weights leave spare is what a longer context grows into. Granite 4.2 8B reaches 128k there against 32k on the MacBook Pro M5 Pro (16-inch), 24GB, each the longest window the calculator offers that the machine still holds it at.

The MacBook Pro M5 Pro (16-inch), 24GB is also head to head with the same machine at another memory size: 48GB · 64GB.

The Mac Studio M5 Max, 48GB is also head to head with the same machine at another memory size: 64GB · 128GB. With the same box and the smaller chip: 36GB. With the machine it replaced: Mac Studio M4 Max, 48GB.

The assumptions behind both columns

Both columns use the same usage: 500k tokens a day at 15:1 input to output, 32k of context, $0.17 per kWh, and today's API prices held flat. Speeds marked estimated are worked out from memory bandwidth rather than measured, and pay-back scales with them. Change any of it in the calculator.

More head to head: everything the MacBook Pro M5 Pro (16-inch), 24GB runs · everything the Mac Studio M5 Max, 48GB runs · every other match-up · the quickest pay-back at each level of use · every model against the frontier