Can DeepSeek R1 Distill 70B run on Radeon Pro W7900 48GB?

BARELY — Tight on Memory

B62Good

Estimated from fit model

DeepSeek R1 Distill 70B needs ~53.3 GB VRAM. Radeon Pro W7900 48GB has 48.0 GB. With Q4_K_M quantization, expect ~8 tok/s.

Runtime: llama.cppCapacity: OffloadBandwidth: HighStack: StandardBottleneck: Host offload

Operating mode

Choose the run profile you care about

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.

Capabilities:

Select quantization to explore

Q4_K_M (Medium quality) — 53.3 GB, 7.8 tok/s, Very compromised (needs ~4.2 GB host RAM)

53.3 GB required48.0 GB available

111% VRAM needed

5.3 GB over capacity — needs offload or smaller quantization

Fit status

Very compromised (needs ~4.2 GB host RAM)

Decode

7.8 tok/s

TTFT

24770 ms

Safe context

Memory

53.3 GB / 48.0 GB

Offload

10%

Memory breakdown

Weights42.7 GB

KV Cache4.9 GB

Runtime0.9 GB

Headroom4.8 GB

See how fast it feels

See how fast it feelsDeepSeek R1 Distill 70B on Radeon Pro W7900 48GB
1st promptCold start — includes initialization
>Write a Python function to sort a list
Here's a Python function that sorts a list using quicksort:

def quicksort(arr):
    if len(arr) <= 1:
        return arr
    pivot = arr[len(arr) // 2]
    left   = [x for x in arr if x < pivot]
    middle = [x for x in arr if x == pivot]
    right  = [x for x in arr if x > pivot]
    return quicksort(left) + middle + quicksort(right)

# Example usage
numbers = [3, 6, 8, 10, 1, 2, 1]
print(quicksort(numbers))  # [1, 1, 2, 3, 6, 8, 10]

The algorithm picks a pivot, partitions the list into smaller, equal, and larger elements, then recursively sorts each partition and concatenates the results.
2nd promptWarm — model ready, no init overhead
>Now add type hints and a docstring
def quicksort(arr: list[int]) -> list[int]:
    """Sort a list using the quicksort algorithm.

    Args:
        arr: List of integers to sort.

    Returns:
        A new sorted list.
    """
    if len(arr) <= 1:
        return arr
    pivot = arr[len(arr) // 2]
    left   = [x for x in arr if x < pivot]
    middle = [x for x in arr if x == pivot]
    right  = [x for x in arr if x > pivot]
    return quicksort(left) + middle + quicksort(right)

Added type hints for the input and return type, plus a Google-style docstring.
Estimated: 7.8 tok/s decode · 24.8s TTFT (warm) · 20 tok/s prefill

What limits this setup

It fits through host-memory offload, and offload is the main reason performance drops.

CPU or host-memory offload is active

About 10% of the working set spills out of accelerator memory, which usually hurts latency and sustained decode throughput.

Very little memory headroom

You can run the model, but there is not much room left for longer context, bigger batches, extra apps, or future model updates.

Best improvement path

Remove offload with more accelerator memory

Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

Buy headroom, not only minimum fit

A slightly larger memory tier gives you safer context growth and makes the recommendation more future-proof.

Increase host RAM if you keep offloading

This setup may need roughly 4.2 GB of extra host RAM just for the offloaded portion, before OS and other tools.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	B	Runs with offload (needs ~2.4 GB host RAM)	8.6 tok/s	12241 ms	4K
Coding	B	Very compromised (needs ~4.2 GB host RAM)	7.8 tok/s	24770 ms	4K
Agentic Coding	F	Too heavy	6.5 tok/s	43333 ms	4K
Reasoning	B	Very compromised (needs ~4.2 GB host RAM)	7.8 tok/s	29274 ms	4K
RAG	F	Too heavy	6.5 tok/s	54166 ms	4K

Inference speed

DeepSeek R1 Distill 70B inference speed — tokens per second by GPU & Mac

Estimated decode speed (tokens/sec) for DeepSeek R1 Distill 70B at Q4_K_M across popular GPUs and Apple Silicon, including multi-GPU rigs, using the fastest local runtime per device. Fastest is 2× RX 7900 XTX 24GB at ~18 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?
2× RX 7900 XTX 24GB	48 GB	Q4_K_M	18.0	Heavy offload
MacBook Pro M4 Max 128GB	128 GB	Q4_K_M	15.3	Fits
Mac Studio M3 Ultra 256GB	256 GB	Q4_K_M	14.2	Fits
Mac Studio M2 Ultra 128GB	128 GB	Q4_K_M	11.8	Fits
MacBook Pro M4 Max 64GB	64 GB	Q4_K_M	11.6	Too big
Mac Studio M1 Ultra 128GB	128 GB	Q4_K_M	11.2	Fits
2× RTX 4090 24GB	48 GB	Q4_K_M	9.5	Heavy offload
2× RTX 3090 24GB	48 GB	Q4_K_M	8.7	Heavy offload
4× RTX 3060 12GB	48 GB	Q4_K_M	7.7	Heavy offload
RTX 5090 32GB	32 GB	Q4_K_M	5.7	Too big
MacBook Pro M4 Pro 48GB	48 GB	Q4_K_M	5.4	Too big
MacBook Pro M3 Max 64GB	64 GB	Q4_K_M	4.6	Too big
MacBook Pro M1 Max 64GB	64 GB	Q4_K_M	4.3	Too big
RX 7900 XTX 24GB	24 GB	Q4_K_M	2.7	Too big
RTX 4090 24GB	24 GB	Q4_K_M	2.0	Too big
RTX 4080 Super 16GB	16 GB	Q4_K_M	2.0	Too big
RTX 3090 24GB	24 GB	Q4_K_M	2.0	Too big
RTX 4070 12GB	12 GB	Q4_K_M	2.0	Too big
RTX 3060 12GB	12 GB	Q4_K_M	2.0	Too big
RTX 4060 8GB	8 GB	Q4_K_M	2.0	Too big

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.

Quantization options

How DeepSeek R1 Distill 70B (70B params) fits at each quantization level on Radeon Pro W7900 48GB (48.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	27.3 GB	Low	A74
Q3_K_SBest for your GPU	3	34.3 GB	Low	A74
NVFP4	4	39.2 GB	Medium	F0
Q4_K_M	4	42.7 GB	Medium	F0
Q5_K_M	5	50.4 GB	High	F0
Q6_K	6	57.4 GB	High	F0
Q8_0	8	74.9 GB	Very High	F0
F16	16	143.5 GB	Maximum	F0

Get started

Copy-paste commands to run DeepSeek R1 Distill 70B on your machine.

Run

ollama run deepseek-r1:70b

アップグレードオプション

DeepSeek R1 Distill 70Bを快適に動かすハードウェア

AMD Instinct MI350X 288GBコスパ重視

288 GB VRAM (+240)8000 GB/s (+7136)

Removes host-memory offload, which is usually the single biggest latency and throughput win.148.7 tok/sデコード

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 1806%.

〜$8,000 MSRP

AMD Instinct MI210 64GBコスパ最良

64 GB VRAM (+16)1638 GB/s (+774)

Removes host-memory offload, which is usually the single biggest latency and throughput win.28.4 tok/sデコード

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 264%.

〜$10,000 MSRP

AMD Instinct MI300A 128GBAMDアップグレード

128 GB VRAM (+80)5300 GB/s (+4436)

Removes host-memory offload, which is usually the single biggest latency and throughput win.94.5 tok/sデコード

Removes host-memory offload, which is usually the single biggest latency and throughput win.

Raises estimated decode speed by about 1112%.

〜$12,000 MSRP

Frequently asked questions

Can Radeon Pro W7900 48GB run DeepSeek R1 Distill 70B?

Yes, Radeon Pro W7900 48GB can run DeepSeek R1 Distill 70B with a B grade (Very compromised (needs ~4.2 GB host RAM)). Expected decode speed: 7.8 tok/s.

How much VRAM does DeepSeek R1 Distill 70B need?

DeepSeek R1 Distill 70B (70B parameters) requires approximately 53.3 GB of memory with Q4_K_M quantization.

What is the best quantization for DeepSeek R1 Distill 70B?

The recommended quantization for DeepSeek R1 Distill 70B is Q4_K_M, which balances quality and memory efficiency.

What speed will DeepSeek R1 Distill 70B run at on Radeon Pro W7900 48GB?

On Radeon Pro W7900 48GB, DeepSeek R1 Distill 70B achieves approximately 7.8 tokens per second decode speed with a time-to-first-token of 24770ms using Q4_K_M quantization.

Can Radeon Pro W7900 48GB run DeepSeek R1 Distill 70B for coding?

For coding workloads, DeepSeek R1 Distill 70B on Radeon Pro W7900 48GB receives a B grade with 7.8 tok/s and 4K context.

What context window can DeepSeek R1 Distill 70B use on Radeon Pro W7900 48GB?

On Radeon Pro W7900 48GB, DeepSeek R1 Distill 70B can safely use up to 4K tokens of context. The model's official context limit is 131K, but available memory constrains the safe maximum.

What should I upgrade first if DeepSeek R1 Distill 70B feels slow on Radeon Pro W7900 48GB?

Remove offload with more accelerator memory. Prioritize a GPU or unified-memory tier that fits the whole model natively. Removing offload usually helps more than small compute gains.

See all results for Radeon Pro W7900 48GB See all hardware for DeepSeek R1 Distill 70B

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