Framework Desktop (Ryzen AI Max+ 395, 128 GB) vs Mac Studio M5 Max 128 GB
Framework Desktop has 128 GB memory, 256 GB/s bandwidth, 140 W nominal power; M5 Max has 128 GB memory, 614 GB/s bandwidth, 175 W nominal power. Compare model compatibility, like-for-like tokens/sec and ownership cost below.
Framework Desktop (Ryzen AI Max+ 395, 128 GB) · Mac Studio M5 Max 128 GB
Verdict
- throughputThe Mac Studio M5 Max 128 GB delivers approximately 317% higher aggregate decode throughput across 3 like-for-like model configurations (same quantization, runtime, context and inference settings).
- capacityBoth machines run all 8 compared models in their best practical configurations. Compare their quantizations and evidence labels before treating any throughput difference as a hardware result.
- costAt 8 hours a day, the Framework Desktop (Ryzen AI Max+ 395, 128 GB) has approximately 38% lower total monthly cost ($28 against $45), for a C corporation in United States (federal).
- evidenceAll 3 like-for-like throughput rows are estimates. Treat the ranking as indicative and the margins as uncertain.
- recommendationThere is no single answer: the Mac Studio M5 Max 128 GB is faster, the Framework Desktop (Ryzen AI Max+ 395, 128 GB) is cheaper to own, and the Mac Studio M5 Max 128 GB gives more throughput per unit of purchase currency. Pick on whichever constraint actually binds you — interactive latency, monthly budget, or capacity headroom for larger models later.
Every statement above is generated from the calculations on this page by fixed rules — no prose is written for individual comparisons. If the numbers change, the verdict changes with them.
Hardware
| Framework Desktop (Ryzen AI Max+ 395, 128 GB) | Mac Studio M5 Max 128 GB | |
|---|---|---|
| Purchase price estimate | $2,161 * | $4,323 * |
| Memory | 128 GB | 128 GB |
| Memory bandwidth | 256 GB/s | 614 GB/s |
| Usable bandwidth indicator | 123 GB/s (48%) | 538 GB/s (88%) |
| Nominal power | 140 W | 175 W |
| Measured load power | 130 W | 122 W |
| Idle power | 12 W | 8 W |
| Architecture | igpu unified | unified memory |
Like-for-like performance3 comparable models
DeepSeek-V4 FlashMixtral 8x22BQwen3.5 122B-A10BNemotron 3 Super 120B-A12BMistral Small 4 119B-A6.5Bgpt-oss-120bMixtral 8x7BPhi-3.5 MoE 42B-A6.6B
| Model | Framework Desktop (Ryzen AI Max+ 395, 128 GB) | Mac Studio M5 Max 128 GB | Winner |
|---|---|---|---|
| DeepSeek-V4 Flash 304.18B (13B active) | — no matched configuration | — no matched configuration | Not comparable |
| Mixtral 8x22B 140.63B (39B active) | — no matched configuration | — no matched configuration | Not comparable |
| Qwen3.5 122B-A10B 125.086B (10B active) | ~11.8–17 t/s Q5_K_M | ~49.5–71.3 t/s Q5_K_M | Mac Studio M5 Max 128 GB +318% estimated · estimator_v1 · 8K context |
| Nemotron 3 Super 120B-A12B 123.611B (12B active) | ~9.9–14.2 t/s Q5_K_M | ~41.7–60 t/s Q5_K_M | Mac Studio M5 Max 128 GB +321% estimated · estimator_v1 · 8K context |
| Mistral Small 4 119B-A6.5B 119.401B (6.5B active) | ~18–25.9 t/s Q5_K_M | ~73.8–106 t/s Q5_K_M | Mac Studio M5 Max 128 GB +310% estimated · estimator_v1 · 8K context |
| gpt-oss-120b 116.829B (5.1B active) | — no matched configuration | — no matched configuration | Not comparable |
| Mixtral 8x7B 46.703B (13B active) | — no matched configuration | — no matched configuration | Not comparable |
| Phi-3.5 MoE 42B-A6.6B 41.873B (6.6B active) | — no matched configuration | — no matched configuration | Not comparable |
Hardware deltas are calculated only when quantization, runtime, exact context, execution/decode mode and relevant inference settings match. Measured and estimated results are never compared to each other. A difference under 10% is reported as a tie.
Best practical configuration
| Model | Framework Desktop (Ryzen AI Max+ 395, 128 GB) | Mac Studio M5 Max 128 GB | Practical result |
|---|---|---|---|
| DeepSeek-V4 Flash | — DS4 Q2 (mixed) · estimated | — DS4 Q2 (mixed) · estimated | Both fit; configurations may differ |
| Mixtral 8x22B | — Q4_K_M · estimated | — Q4_K_M · estimated | Both fit; configurations may differ |
| Qwen3.5 122B-A10B | ~13.8–19.9 t/s Q4_K_M · estimated | ~57.5–82.8 t/s Q4_K_M · estimated | Both fit; configurations may differ |
| Nemotron 3 Super 120B-A12B | ~11.6–16.7 t/s Q4_K_M · estimated | ~48.5–69.8 t/s Q4_K_M · estimated | Both fit; configurations may differ |
| Mistral Small 4 119B-A6.5B | ~21–30.2 t/s Q4_K_M · estimated | ~73.8–106 t/s Q5_K_M · estimated | Both fit; configurations may differ |
| gpt-oss-120b | 30 t/s MXFP4 · measured | ~118–170 t/s MXFP4 · estimated | Both fit; configurations may differ |
| Mixtral 8x7B | — Q8_0 · estimated | — Q8_0 · estimated | Both fit; configurations may differ |
| Phi-3.5 MoE 42B-A6.6B | — Q8_0 · estimated | — Q8_0 · estimated | Both fit; configurations may differ |
This is a deployment comparison: each machine uses its own recommended configuration. Different quantizations can change speed and quality, so these figures are not raw hardware benchmarks.
Economics — United States (federal), C corporation, 8h/day
| Framework Desktop (Ryzen AI Max+ 395, 128 GB) | Mac Studio M5 Max 128 GB | |
|---|---|---|
| Purchase price estimate | $2,161 | $4,323 |
| Reclaimable VAT | $0 | $0 |
| Net cash at purchase | $2,161 | $4,323 |
| Monthly depreciation | $30.62 | $50.44 |
| Monthly electricity | $0.88 (6 kWh) | $0.76 (5 kWh) |
| Tax programme | §179 100.0% | §179 100.0% |
| Tax-programme benefit | $454 | $908 |
| Monthly economic cost | $27.89 | $45.27 |
| Total over 5 years | $1,673 | $2,716 |
Purchase prices are localized inputs in USD: tax/VAT excluded for Framework Desktop (Ryzen AI Max+ 395, 128 GB) and tax/VAT excluded for Mac Studio M5 Max 128 GB. Net cash and monthly economic cost then apply the selected United States (federal) / C corporation tax treatment. Tax assumptions last verified 2026-09-07. Federal planning estimate only, not tax advice. State and local income tax, sales/use tax and incentives are excluded. It assumes 100% business use, a Section 179 election, enough business income to use it, and that the full annual limit remains available.