NV NVIDIA Consumer Discrete GPU

NVIDIA GeForce RTX 2050 Mobile

Runs downloadable LLMs up to ~2.5B at Q4, ~18.3-21.8 tok/s on an 8B model.

NV
4GB · 112 GB/s
4GB
VRAM
112
GB/s bandwidth
2.5B
Max model (Q4)

What you can run

At 8k context, FP16 KV. Full-speed tok/s holds up to "max ctx"; beyond it the context spills to system RAM (CPU/PCIe offload) and drops to the degraded figure.

Model sizeFP16Q8Q4
3B won't run won't run 48.7-58 t/s
≤8k ctx · then ~17.4-20.7 (slow)
7-8B won't run won't run won't run
13B won't run won't run won't run
32B won't run won't run won't run
70B won't run won't run won't run
120B won't run won't run won't run
400B won't run won't run won't run

Estimate: tok/s ≈ bandwidth ÷ (params × bytes/param) × efficiency (NVIDIA). Cyan = fits ~3.7 GB usable. Beyond "ctx", KV spills to system RAM (CPU/PCIe offload) (rough degraded speed shown).

What else you need for a full build

Minimum supporting components for a desktop built around the NVIDIA GeForce RTX 2050 Mobile. Guidance — exact needs depend on your case, other parts and how much you offload to system RAM.

System RAM
≥ 16 GB · 32 GB recommended
At least the 4 GB of VRAM; 2× lets you CPU-offload models larger than VRAM.
Motherboard
1× free PCIe x16 slot (4.0/5.0)
A full-length x16 electrical slot; PCIe 4.0 is ample, 5.0 future-proofs.
CPU
Any modern multi-core
The GPU runs inference; more cores and memory channels only matter when offloading to RAM.
Storage
≥ 1 TB NVMe SSD
Weights are large — a 70B model at Q4 is ~40 GB; budget for a few.

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About the NVIDIA GeForce RTX 2050 Mobile

NVIDIA GeForce RTX 2050 Mobile is a discrete GPU from NVIDIA, 2021. For local genAI the numbers that matter are its 4 GB (how big a model + context fits) and 112 GB/s bandwidth (generation speed).

Frequently asked questions

What size LLM can the NVIDIA GeForce RTX 2050 Mobile run?

With ~3.7 GB usable it runs up to ~2.5B at Q4 (~0.5B at FP16) at 8k context. Bigger spills into system RAM (CPU/PCIe offload) and slows sharply.

How many tokens/sec does the NVIDIA GeForce RTX 2050 Mobile generate?

Generation is bandwidth-bound. At 112 GB/s an 8B model at Q4 runs ~18.3-21.8 tok/s (estimate).

Why does long context slow it down?

The KV cache for the context must also fit fast memory; once weights+KV exceed 3.7 GB it spills to system RAM (CPU/PCIe offload) and throughput collapses. Each row shows the max usable context.

What else do I need to run the NVIDIA GeForce RTX 2050 Mobile?

Besides the card: at least 16GB of system RAM (2× the 4GB VRAM is ideal for CPU offload), a free PCIe x16 slot, any modern multi-core CPU, and a ≥1TB NVMe SSD for model weights.