Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$229 MSRP
Granite Code 3B needs ~5.9 GB but GTX 1650 4GB only has 4.0 GB. Try a smaller quantization or lighter model.
Operating mode
Interactive favors responsiveness, while light API and scale-out lean harder on serving readiness. The fit stays the same, but the recommendation lens changes.
Current mode
Balanced
Balanced for general local use. Keeps the ranking neutral across personal and serving workflows.
Select quantization to explore
1.9 GB over capacity — needs offload or smaller quantization
Fit status
Too heavy
Decode
10.9 tok/s
TTFT
17831 ms
Safe context
4K
Memory
5.9 GB / 4.0 GB
Offload
30%
Usable VRAM is the main blocker for this model.
Not enough usable memory
The model needs 5.9 GB, but this setup only exposes 4.0 GB of usable VRAM.
Older PCIe generation
PCIe 3.0 is workable, but it compounds the penalty when you offload heavily or try to scale across multiple cards.
Add more VRAM headroom
The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
| Workload | Grade | Fit | Decode | TTFT | Context |
|---|---|---|---|---|---|
| Chat | C | Very compromised (needs ~0.3 GB host RAM) | 18.2 tok/s | 5805 ms | 4K |
| Coding | F | Too heavy | 10.9 tok/s | 17831 ms | 4K |
| Agentic Coding | F | Too heavy | 5.2 tok/s | 53680 ms | 4K |
| Reasoning | F | Too heavy | 10.9 tok/s | 21073 ms | 4K |
| RAG | F | Too heavy | 5.2 tok/s | 67100 ms | 4K |
Inference speed
Estimated decode speed (tokens/sec) for Granite Code 3B at Q4_K_M across popular GPUs and Apple Silicon, using the fastest local runtime per device. Fastest is RTX 5090 32GB at ~57 tok/s. Speed is memory-bandwidth bound, so cards that fit the whole model in VRAM run far faster than ones that offload to system RAM.
| GPU / Mac | Memory | Quant | Speed (tok/s) | Fits? |
|---|---|---|---|---|
| 32 GB | Q4_K_M | 57.0 | Fits | |
| 24 GB | Q4_K_M | 48.0 | Fits | |
| 16 GB | Q4_K_M | 48.0 | Fits | |
| 8 GB | Q4_K_M | 48.0 | Fits | |
| 24 GB | Q4_K_M | 42.0 | Fits | |
| 12 GB | Q4_K_M | 42.0 | Fits | |
| 12 GB | Q4_K_M | 42.0 | Fits | |
RX 7900 XTX 24GB | 24 GB | Q4_K_M | 42.0 | Fits |
MacBook Pro M4 Max 128GB | 128 GB | Q4_K_M | 42.0 | Fits |
Mac Studio M3 Ultra 256GB | 256 GB | Q4_K_M | 42.0 | Fits |
Mac Studio M2 Ultra 128GB | 128 GB | Q4_K_M | 42.0 | Fits |
Mac Studio M1 Ultra 128GB | 128 GB | Q4_K_M | 42.0 | Fits |
MacBook Pro M4 Max 64GB | 64 GB | Q4_K_M | 42.0 | Fits |
MacBook Pro M3 Max 64GB | 64 GB | Q4_K_M | 42.0 | Fits |
MacBook Pro M1 Max 64GB | 64 GB | Q4_K_M | 42.0 | Fits |
MacBook Pro M4 Pro 48GB | 48 GB | Q4_K_M | 42.0 | Fits |
Estimates for single-stream decoding at Q4_K_M; real tokens/sec varies with prompt length, context, batch size, and runtime build. Prompt processing (prefill) is faster than the decode figures shown here.
How Granite Code 3B (3B params) fits at each quantization level on GTX 1650 4GB (4.0 GB usable).
| Quant | Bits | VRAM | Quality | Fit |
|---|---|---|---|---|
Q2_K | 2 | 1.2 GB | Low | A72 |
Q3_K_S | 3 | 1.5 GB | Low | A71 |
NVFP4 | 4 | 1.7 GB | Medium | A71 |
Q4_K_MBest for your GPU | 4 | 1.8 GB | Medium | A71 |
Q5_K_M | 5 | 2.2 GB | High | F0 |
Q6_K | 6 | 2.5 GB | High | F0 |
Q8_0 | 8 | 3.2 GB | Very High | F0 |
F16 | 16 | 6.1 GB | Maximum | F0 |
Upgrade options
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$229 MSRP
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$249 MSRP
Makes the model fit on the accelerator instead of staying completely out of reach.
Removes host-memory offload, which is usually the single biggest latency and throughput win.
~$249 MSRP
No, Granite Code 3B requires more memory than GTX 1650 4GB provides.
Granite Code 3B (3B parameters) requires approximately 5.9 GB of memory with Q4_K_M quantization.
The recommended quantization for Granite Code 3B is Q4_K_M, which balances quality and memory efficiency.
On GTX 1650 4GB, Granite Code 3B achieves approximately 10.9 tokens per second decode speed with a time-to-first-token of 17831ms using Q4_K_M quantization.
For coding workloads, Granite Code 3B on GTX 1650 4GB receives a F grade with 10.9 tok/s and 4K context.
On GTX 1650 4GB, Granite Code 3B can safely use up to 4K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.
Add more VRAM headroom. The first useful upgrade is more dedicated VRAM so you can fit the model without shrinking context or dropping to a much lower quant.
Paste this snippet into any page to show a live fit card.
<iframe src="https://willitrunai.com/embed/granite-code-3b-on-gtx-1650-4gb" width="400" height="180" frameborder="0" style="border:none;border-radius:12px;overflow:hidden;" title="Will It Run AI — fit result"></iframe>
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