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

Mac mini M5 Pro, 24GB vs NVIDIA RTX PRO 6000 Blackwell, 96GB for local AI

The RTX PRO 6000 Blackwell, 96GB holds 40 of the 49 current models here, and the Mac mini M5 Pro, 24GB holds 16. The Mac mini M5 Pro, 24GB costs $16,301 less, though the RTX PRO 6000 Blackwell, 96GB is priced as the card alone, without the PC around it. On Gemma 4 12B, the strongest model both hold, the RTX PRO 6000 Blackwell, 96GB is about 6.3× faster: 182 tok/s against 29, both estimated from memory bandwidth. The Mac mini M5 Pro, 24GB pays for itself sooner, in 135 years against 1,071 years at 500k tokens a day, though that is each machine on its own strongest model rather than on the same one.

Mac mini M5 Pro, 24GBNVIDIA RTX PRO 6000 Blackwell, 96GB
Price$1,699$18,000card only
Memory24 GB96 GB
Usable by the GPU16 GB95 GB
Memory bandwidth307 GB/s1792 GB/s
Power under load140 Wstand-in600 W
Models that fit1640
Best model it runsGemma 4 12BQwen3.8 27B
Speed on that model29 tok/s estimatedGemma 4 12B78 tok/s estimatedQwen3.8 27B
Pay-back on that modelPays back in 135 yearsPays back in 1,071 years

The 140 W beside the Mac mini M5 Pro, 24GB is a stand-in, not a figure for that machine: the data borrows it from the nearest hardware it does have, and the machine's own page names which and why. So the two figures above are not like for like, and the electricity in its pay-back here is priced from a borrowed number.

Run the numbers on the Mac mini M5 Pro, 24GB · or the NVIDIA RTX PRO 6000 Blackwell, 96GB

Jump to: Side by side on Gemma 4 12B · How much use it takes to pay back · What the extra memory buys · The assumptions behind both columns

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.

Mac mini M5 Pro, 24GBNVIDIA RTX PRO 6000 Blackwell, 96GB
Speed29 tok/s estimated182 tok/s estimated
Pay-backPays back in 135 yearsPays back in 1,343 years

Run Gemma 4 12B on the Mac mini M5 Pro, 24GB · or on the NVIDIA RTX PRO 6000 Blackwell, 96GB

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 mini M5 Pro, 24GB 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 useMac mini M5 Pro, 24GBNVIDIA RTX PRO 6000 Blackwell, 96GB
50ka few chats a day1,353 years13,433 years
200klight assistant use338 years3,358 years
1Ma moderate coding-assistant day68 years672 years
4Mheavy coding with an agent17 years168 years
20Magents running most of the day3.4 years34 years

Run the Mac mini M5 Pro, 24GB at 20M tokens a day · or the NVIDIA RTX PRO 6000 Blackwell, 96GB

What the extra memory buys

The NVIDIA RTX PRO 6000 Blackwell, 96GB holds 24 models the Mac mini M5 Pro, 24GB cannot at 32k of context. The strongest of them are what the difference in memory actually buys.

ModelWeightsNeeds at 32kOn the NVIDIA RTX PRO 6000 Blackwell, 96GB
Qwen3.8 27BSonnet-class16 GB19 GB78 tok/s estimated
Ling 3.0 flashHaiku-class78 GB78 GB160 tok/s estimated
Qwen3.6 27BHaiku-class17 GB19 GB77 tok/s estimated
Nemotron 3.5 Bolt 74B-A9BHaiku-class22 GB22 GB191 tok/s estimated
Qwen3.6 35B-A3BHaiku-class22 GB23 GB221 tok/s estimated
Muse Glimmer 30BHaiku-class17 GB18 GB81 tok/s estimated

18 more, on the NVIDIA RTX PRO 6000 Blackwell, 96GB page.

The extra memory buys context as well. Of the 16 current models both machines hold at 32k, 4 run to a longer window on the NVIDIA RTX PRO 6000 Blackwell, 96GB: 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. Ministral 3 14B reaches 256k there against 32k on the Mac mini M5 Pro, 24GB, each the longest window the calculator offers that the machine still holds it at.

The Mac mini M5 Pro, 24GB is also head to head with another computer: Mac Studio M5 Max, 128GB · DGX Spark, 128GB · GMKtec EVO-X2, 128GB · MacBook Air M5 (15-inch), 16GB · MacBook Pro M5 Pro (16-inch), 64GB · Corsair AI Workstation 300, 64GB. With a graphics card: Radeon AI PRO R9700, 32GB. With the same machine at another memory size: 48GB · 64GB. With the machine it replaced: Mac mini M4 Pro, 24GB.

The RTX PRO 6000 Blackwell, 96GB is also head to head with another card: Radeon AI PRO R9700, 32GB · GeForce RTX 5090, 32GB · GeForce RTX 4090, 24GB · GeForce RTX 3090, 24GB · GeForce RTX 4080, 16GB · GeForce RTX 3060, 12GB. With a complete computer: Mac Studio M5 Max, 128GB · DGX Spark, 128GB · GMKtec EVO-X2, 128GB · MacBook Air M5 (15-inch), 16GB · MacBook Pro M5 Pro (16-inch), 64GB.

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. The RTX PRO 6000 Blackwell, 96GB is priced as the card alone, so add the PC around it before comparing it with a complete computer. All seven cards here are ranked by what each one holds. Change any of it in the calculator.

More head to head: everything the Mac mini M5 Pro, 24GB runs · everything the NVIDIA RTX PRO 6000 Blackwell, 96GB runs · every other match-up · the quickest pay-back at each level of use · every model against the frontier