Can Desktop PC · Radeon RX 7900 XTX · 64 GB RAM run Recursive Flint (40B-A2.5B)?
24 GB VRAM + 64 GB RAM · 960 GB/s memory bandwidth · Recursive Flint (40B-A2.5B) has 39.8B parameters (2.5B active per token).
Short answer
Yes, excellent for chat; borderline for 64K-token documents.
Best quantization for chat: MXFP4 (20 GB of weights) on Lemonade. Generation: 320–430 tok/s, leaving about 2.1 GB free for your other apps.
How it rates for each workload
Same model and machine, different jobs. Agents and long documents send far bigger prompts than chat, so they need much more speed and memory.
| Workload | Verdict | Quant | Generation | First reply | Context | |
|---|---|---|---|---|---|---|
| Chatwith Open WebUI | Excellent | MXFP4 | 320–430 tok/s | under 1 s | 8K | Details |
| Coding questionswith Continue | Excellent | MXFP4 | 300–400 tok/s | ≈1 s | 16K | Details |
| Coding in a repositorywith Aider | Comfortable | MXFP4 | 250–340 tok/s | ≈3 s | 32K | Details |
| Agentic codingwith OpenCode | Comfortable | MXFP4 | 230–310 tok/s | ≈4 s | 32K | Details |
| Long documents (64K)with Open WebUI | Borderline | MXFP4 | 160–210 tok/s | ≈15 s | 64K | Details |
Speeds are estimates calibrated against measured benchmarks on similar hardware. “First reply” is the time to read the workload’s opening prompt. How we calculate
Other models for Desktop PC · Radeon RX 7900 XTX · 64 GB RAM
The best-rated models for chat on this machine.
- Qwen3.6 35B-A3B240–320 tok/sExcellent
- Gemma 4 26B-A4B160–220 tok/sExcellent
- LFM2.5 24B-A2B350–480 tok/sExcellent
- gpt-oss-20b210–280 tok/sExcellent
- Qwen3.5 35B-A3B240–320 tok/sExcellent
- GLM-4.7-Flash (30B-A3B)240–320 tok/sExcellent
Cheapest machines for Recursive Flint (40B-A2.5B)
Hardware rated comfortable or better for chat, lowest price first.
- Mac mini M4 32 GB$1,399 · 40–55 tok/sExcellent
- Desktop PC · Ryzen 9 9950X (no GPU) · 64 GB DDR5$1,400 · 20–35 tok/sExcellent
- Desktop PC · Intel Arc Pro B60 24GB · 32 GB RAM$1,500 · 95–160 tok/sExcellent
- Ryzen AI Max+ 395 mini PC / Framework Desktop · 64 GB$1,600 · 100–140 tok/sExcellent
- Desktop PC · Intel Arc Pro B60 24GB · 64 GB RAM$1,628 · 95–160 tok/sExcellent
- Mac mini M2 Pro 32 GB$1,699 · 65–90 tok/sExcellent
Same chip, other memory: 32 GB
Different tool, context size or workload?
These pages use typical settings. The full check models your exact setup.