Cohere Command A 111B on RTX 5070 12GB (12GB) — VRAM, KV Cache & Throughput

Cohere Command A 111B (111B total, 111B active, Dense GQA) uses 63.92 GiB of 4-bit weights (Q4_K_M), requiring 65.75 GiB total at 8K context and 67.25 GiB at 32K on RTX 5070 12GB (~1 tok/s decode).

Interactive Sizing Workbench

Full Compatibility Report →
12 GB · 672 GB/s
Exceeds Available GPU Memory
Config-derived formula HF config.json ↗
Memory Allocation Breakdown (GiB) 65.75 GiB (70.6 GB) / 12 GiB (548%)
Model Weights: 63.92 GiB KV Cache & State: 1.25 GiB Runtime & Activation Buffers: 0.58 GiB System RAM Offload: 0 GiB
Required GPU Memory
65.75 GiB
70.6 GB (decimal)
Usable Hardware Memory
11.4 GiB
12 GB (physical)
Safe Headroom
-54.35 GiB
548% utilization
Est. Decode Throughput
~1 tok/s
111B active params
Est. Prefill Throughput
~145 tok/s
4K Prompt TTFT: ~28204 ms
Est. Cost / 1M Tokens
$122.78
Dense GQA · CC-BY-NC

Recommended Hardware for Current Configuration

Best Single GPU
RTX PRO 6000 Blackwell (96GB)
~$8,500
Best Value / Used GPU
2x A100 80GB SXM
160GB · ~$24,000
Apple Unified Memory
Ryzen AI Max+ 395 128GB
~$1,999
Cloud From
Vast.ai · $0.44 / hr
1x A100 80GB SXM

Production Launch Commands

llama.cpp (GGUF)
llama-server -hf CohereForAI/c4ai-command-a-03-2025:Q4_K_M \
  --ctx-size 8192 -ngl 999 --flash-attn
vLLM
vllm serve CohereForAI/c4ai-command-a-03-2025 \
  --max-model-len 8192 --gpu-memory-utilization 0.92
Live Token Speed Simulator (TTFT ~28204ms · ~1 tok/s)
[Cohere Command A 111B · 65.75 GiB] allocated on target GPU. Prefill completed in TTFT window; streaming autoregressive tokens at memory-bandwidth-bound rate...

Cloud GPU Comparison & Rent-vs-Buy TCO

Verified public rates across RunPod, Vast.ai, Vultr, and DigitalOcean.

Verified: 2026-11-04
Purchase break-even
~64.4 months
Est. local power: $12.77 / mo
Provider Recommended Instance Total VRAM Hourly Rate Monthly at Selected Hours Billing Mode Deploy
RunPod 1x A100 80GB SXM (Community Cloud · PCIe) 80 GB $1.19 / hr $144.70 / mo Per-second Deploy GPU ↗
Vast.ai 1x A100 80GB SXM (Verified Host · SXM4) 80 GB $0.44 / hr $53.75 / mo Spot / On-demand Deploy GPU ↗
Vultr ($300 Free Credit*) 1x A100 80GB SXM (Dedicated Instance · $300 Credit*) 80 GB $2.40 / hr $291.48 / mo Hourly Deploy GPU ↗
Vultr Cloud GPU 1x A100 80GB SXM (Dedicated Instance) 80 GB $2.40 / hr $291.48 / mo Hourly Deploy GPU ↗
DigitalOcean 1x Instinct MI300X 192GB (Dedicated Instance) 192 GB $2.59 / hr $314.94 / mo Per-second Deploy GPU ↗

Rates reflect public listings on the verification date and fluctuate with regional inventory.

Fine-Tuning VRAM Requirements (QLoRA / LoRA / Full) — Cohere Command A 111B

QLoRA (4b) Exceeds Available GPU Memory
80.79 GiB
Model Weights: 63.92 GiB · Gradients + Optimizer: 15.54 GiB · Act: 1.33 GiB
Recommended GPU: RTX PRO 6000 Blackwell (96GB)
LoRA (16b) Exceeds Available GPU Memory
232.97 GiB
Model Weights: 206.75 GiB · Gradients + Optimizer: 24.42 GiB · Act: 1.8 GiB
Recommended GPU: Instinct MI325X 256GB (256GB)
Full BF16 Exceeds Available GPU Memory
850.85 GiB
Model Weights: 206.75 GiB · Gradients + Optimizer: 640.93 GiB · Act: 3.17 GiB
Recommended GPU: 8x H200 141GB SXM (1128GB)

Engineering Sizing Notes & Optimization Playbook

Quick Hardware Verdict

A single RTX 5070 12GB (12GB) cannot hold 4-bit Cohere Command A 111B (65.75 GiB at 8K) entirely in VRAM. Use multi-GPU tensor parallelism, offload layers to system RAM, or deploy on a larger cloud GPU.

KV Cache & Runtime Tuning

Cohere Command A 111B uses Dense GQA (111B total, 111B active per token). Moving from 8K to 32K context expands FP16 KV cache from 1.25 GiB to 2.75 GiB; enabling 8-bit KV cache (llama.cpp -ctk q8_0 -ctv q8_0 or vLLM --kv-cache-dtype fp8) saves 1.37 GiB at 32K (reducing total VRAM to 65.88 GiB).

VRAM Scaling Across Context Windows (4K to 128K, 4-bit Weights)

Cohere Command A 111B VRAM scaling from 4K to 128K context (4K: 65.49 GiB, 8K: 65.75 GiB, 32K: 67.25 GiB, 128K: 73.25 GiB) 4K 65.49 GiB (KV 1 GiB) 8K 65.75 GiB (KV 1.25 GiB) 32K 67.25 GiB (KV 2.75 GiB) 128K 73.25 GiB (KV 8.75 GiB) RTX 5070 12GB (12GB)
Model weights remain constant while attention KV cache grows with context length and batch size.

Quantization Precision & Memory Matrix — Cohere Command A 111B @ 8K

Quantization Format Weights (GiB) KV Cache Total VRAM (GiB) Decode Speed Compatibility (RTX 5070 12GB) Recommended GPU Data Source
Native Weights (BF16 / FP8 / MXFP4 — Lossless) (BF16) 206.75 GiB 1.25 GiB 208.58 GiB (223.96 GB) ~0.8 tok/s Exceeds Available GPU Memory Instinct MI325X 256GB (256GB) Official checkpoint size
FP8 / GGUF Q8_0 (8-bit — Near-Lossless) (Q8_0) 109.84 GiB 1.25 GiB 111.67 GiB (119.9 GB) ~0.8 tok/s Exceeds Available GPU Memory Instinct MI300X 192GB (192GB) Config-derived formula
GGUF Q6_K (6-bit — High Precision) (Q6_K) 84.77 GiB 1.25 GiB 86.6 GiB (92.99 GB) ~0.8 tok/s Exceeds Available GPU Memory RTX PRO 6000 Blackwell (96GB) Config-derived formula
GGUF Q5_K_M (5-bit — Balanced) (Q5_K_M) 74.16 GiB 1.25 GiB 75.99 GiB (81.59 GB) ~0.8 tok/s Exceeds Available GPU Memory RTX PRO 6000 Blackwell (96GB) Config-derived formula
Q4_K_M / UD-Q4_K_XL / AWQ (4-bit — Recommended) (Q4_K_M) 63.92 GiB 1.25 GiB 65.75 GiB (70.6 GB) ~1 tok/s Exceeds Available GPU Memory RTX PRO 6000 Blackwell (96GB) Config-derived formula
GGUF IQ4_XS (4.25-bit — Compact) (IQ4_XS) 55.83 GiB 1.25 GiB 57.66 GiB (61.91 GB) ~1.1 tok/s Exceeds Available GPU Memory RTX PRO 6000 Blackwell (96GB) Config-derived formula
GGUF Q3_K_M (3-bit — Low VRAM) (Q3_K_M) 51.32 GiB 1.25 GiB 53.15 GiB (57.07 GB) ~1.2 tok/s Exceeds Available GPU Memory RTX PRO 6000 Blackwell (96GB) Config-derived formula
GGUF UD-Q2_K_XL (2-bit — Extreme MoE) (UD-Q2_K_XL) 36.82 GiB 1.25 GiB 38.65 GiB (41.5 GB) ~1.9 tok/s Exceeds Available GPU Memory A40 48GB (48GB) Config-derived formula

Technical Specifications & FAQ

Does Cohere Command A 111B fit on RTX 5070 12GB (12GB)?

In 4-bit (Q4_K_M) at 8,192 context, Cohere Command A 111B requires 65.75 GiB total GPU memory (63.92 GiB weights + 1.25 GiB KV cache + 0.58 GiB runtime buffers) against 11.4 GiB usable on RTX 5070 12GB, delivering ~1 tok/s decode.

How much VRAM does Cohere Command A 111B need at 32K context?

At 32,768 context tokens, Cohere Command A 111B (Dense GQA) allocates 2.75 GiB for KV cache and state, bringing total 4-bit VRAM to 67.25 GiB (72.21 GB decimal).

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