microsoft/Phi-3-medium-4k-instruct
14B params · est. 8.4 GB Q4
Apple M3 Ultra (80c GPU, 512GB): likely fitNVIDIA GeForce RTX 5090 32GB: likely fit
Head-to-head
Apple M3 Ultra (80c GPU, 512GB) vs NVIDIA GeForce RTX 5090 32GB
Compare recorded specifications and inspect source links for both devices. Speed comparisons appear only when workload, runtime version, quantization, context and batch match.
Device profile
Apple M3 Ultra (80c GPU, 512GB)
Compared here against NVIDIA GeForce RTX 5090 32GB.
Curated Aggregate·2026-02-08512GB / $10.0k
Speed evidence
Matched rows below
VRAM
512 GB
TDP
100 W
Rating
Not scored
Device profile
NVIDIA GeForce RTX 5090 32GB
8B–32B quantized models with room reserved for runtime and KV cache.
Curated Aggregate·2026-08-1032GB / $2.0k
Speed evidence
Matched rows below
VRAM
32 GB
TDP
575 W
Rating
Not scored
Quick verdict
Speed comparisons require matching runtime settings. A missing score means insufficient comparative evidence.
Apple M3 Ultra (80c GPU, 512GB) wins VRAM capacity.
Apple M3 Ultra (80c GPU, 512GB) has the lower published power rating.
| Metric | Apple M3 Ultra (80c GPU, 512GB) | NVIDIA GeForce RTX 5090 32GB |
|---|---|---|
| MyAI rating | Not scored | Not scored |
| Speed comparison | See matched rows below | See matched rows below |
| VRAM | 512 GB | 32 GB |
| TDP | 100 W | 575 W |
| MSRP | $10.0k | $2.0k |
| Workloads | 10 | 30 |
Shared benchmark rows
No batch-one rows with matching model, quantization, context, runtime and offload notes are available. We cannot calculate a comparable speed difference.
External quality layer
Best open models likely to fit this class
This shortlist cross-references the external OpenEvals snapshot with an approximate Q4-class VRAM estimate. Use it to sanity-check whether the hardware you are comparing can host strong open models, not just benchmark toy workloads.
91.0
Qwen/Qwen2-72B
73B params · est. 43.6 GB Q4
Apple M3 Ultra (80c GPU, 512GB): likely fitNVIDIA GeForce RTX 5090 32GB: tight / no
microsoft/Phi-3.5-mini-instruct
3.8B params · est. 2.3 GB Q4
Apple M3 Ultra (80c GPU, 512GB): likely fitNVIDIA GeForce RTX 5090 32GB: likely fit
internlm/internlm2_5-7b-chat
7.7B params · est. 4.6 GB Q4
Apple M3 Ultra (80c GPU, 512GB): likely fitNVIDIA GeForce RTX 5090 32GB: likely fit