M4 16GB vs AMD Radeon 780M for local LLMs
5 reports on the M4 16GB and 5 on the AMD Radeon 780M
Which is faster for local LLMs?
On Gemma 4 26B · 4B active at 4-bit, the M4 16GB runs at 30.9 tokens per second (one run) and the AMD Radeon 780M at 25.0 (one run). Those are community reports whose engines and settings differ, so the gap is a rough sign, not a controlled measure of the two cards. Memory bandwidth, which caps how fast a card can write, is about the same on both (120 GB/s on the M4 16GB, 120 on the AMD Radeon 780M).
- Memory
- 16GB unified
- Memory bandwidth
- 120 GB/s
- FP16 compute
- 4.3 TFLOPS
- Reports
- 5
- Memory
- shared memory unified
- Memory bandwidth
- not on record
- FP16 compute
- not on record
- Reports
- 5
Measured on both
Median tokens per second from plain runs (one device, one request, no speculative decoding, the whole model in the device's memory) of the same model size at the same quant level. Engines and context lengths can still differ between the runs. How to read these
| Model | M4 16GB | AMD Radeon 780M |
|---|---|---|
| Gemma 4 26B · 4B active4-bit | 30.9one run | 25.0one run |
Estimated by the calculator
The quant the calculator recommends for each card and its estimated speed at a 32,768-token context with 32 GB of system RAM, from memory bandwidth and the model's shape. Where a model was also measured above, the measurement wins.
| Model | M4 16GB | AMD Radeon 780M |
|---|---|---|
| Gemma 4 26B · 4B active | doesn't fit at these settings | not in the calculator yet |
| Qwen3.8 27B | doesn't fit at these settings | not in the calculator yet |
| Qwen3.8 125B · 6B active | doesn't fit at these settings | not in the calculator yet |
| DeepSeek V4 Flash 284B · 13B active | doesn't fit at these settings | not in the calculator yet |
| Qwen3.6 35B · 3B active | doesn't fit at these settings | not in the calculator yet |
| Qwen3.6 27B | doesn't fit at these settings | not in the calculator yet |
| DeepSeek V4.1 Flash 552B · 16B active | doesn't fit at these settings | not in the calculator yet |
Change the context, RAM or model in the calculator: M4 16GB · AMD Radeon 780M
Every report on each card, with its source: M4 16GB · AMD Radeon 780M