Can InternLM 20B run on Intel Data Center GPU Max 1550 128GB?

YES — Runs Great

B58Good

Estimated from fit model

InternLM 20B needs ~46.4 GB VRAM. Intel Data Center GPU Max 1550 128GB has 128.0 GB. With Q5_K_M quantization, expect ~143 tok/s.

Runtime: llama.cppCapacity: RoomyBandwidth: HighStack: StandardBottleneck: Balanced

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

Q5_K_M (High quality) — 46.4 GB, 142.8 tok/s, Runs well

46.4 GB required128.0 GB available

36% VRAM used

Fit status

Runs well

Decode

142.8 tok/s

TTFT

1356 ms

Safe context

Memory

46.4 GB / 128.0 GB

Memory breakdown

Weights14.4 GB

KV Cache18.3 GB

Runtime0.9 GB

Headroom12.8 GB

See how fast it feels

See how fast it feelsInternLM 20B on Intel Data Center GPU Max 1550 128GB
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: 142.8 tok/s decode · 1.4s TTFT (warm) · 357 tok/s prefill

What limits this setup

The raw memory story may look fine, but the software ecosystem is still a constraint here.

Runtime ecosystem is narrower than CUDA

Intel GPUs can look attractive on memory per dollar, but local AI tooling, kernels, and model coverage are still broader and easier on CUDA today.

Best improvement path

Prefer CUDA if you want the path of least resistance

If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

Performance by workload

Workload	Grade	Fit	Decode	TTFT	Context
Chat	B	Runs well	142.8 tok/s	739 ms	8K
Coding	B	Runs well	142.8 tok/s	1356 ms	8K
Agentic Coding	B	Runs well	142.8 tok/s	1972 ms	8K
Reasoning	B	Runs well	142.8 tok/s	1602 ms	8K
RAG	B	Runs well	142.8 tok/s	2465 ms	8K

Quantization options

How InternLM 20B (20B params) fits at each quantization level on Intel Data Center GPU Max 1550 128GB (128.0 GB usable).

Quant	Bits	VRAM	Quality	Fit
Q2_K	2	7.8 GB	Low	C46
Q3_K_S	3	9.8 GB	Low	C46
NVFP4	4	11.2 GB	Medium	C46
Q4_K_M	4	12.2 GB	Medium	C46
Q5_K_M	5	14.4 GB	High	C47
Q6_K	6	16.4 GB	High	C47
Q8_0	8	21.4 GB	Very High	C47
F16Best for your GPU	16	41.0 GB	Maximum	C50

Get started

Copy-paste commands to run InternLM 20B on your machine.

Run

docker run --rm -it ghcr.io/ggerganov/llama.cpp:full \
  --hf-repo "internlm/internlm2_5-20b-chat" \
  --hf-file "internlm2_5-20b-chat-Q5_K_M.gguf" \
  -c 4096 -ngl 99

Frequently asked questions

Can Intel Data Center GPU Max 1550 128GB run InternLM 20B?

Yes, Intel Data Center GPU Max 1550 128GB can run InternLM 20B with a B grade (Runs well). Expected decode speed: 142.8 tok/s.

How much VRAM does InternLM 20B need?

InternLM 20B (20B parameters) requires approximately 46.4 GB of memory with Q5_K_M quantization.

What is the best quantization for InternLM 20B?

The recommended quantization for InternLM 20B is Q5_K_M, which balances quality and memory efficiency.

What speed will InternLM 20B run at on Intel Data Center GPU Max 1550 128GB?

On Intel Data Center GPU Max 1550 128GB, InternLM 20B achieves approximately 142.8 tokens per second decode speed with a time-to-first-token of 1356ms using Q5_K_M quantization.

Can Intel Data Center GPU Max 1550 128GB run InternLM 20B for coding?

For coding workloads, InternLM 20B on Intel Data Center GPU Max 1550 128GB receives a B grade with 142.8 tok/s and 8K context.

What context window can InternLM 20B use on Intel Data Center GPU Max 1550 128GB?

On Intel Data Center GPU Max 1550 128GB, InternLM 20B can safely use up to 8K tokens of context. The model's official context limit is 8K, but available memory constrains the safe maximum.

What should I upgrade first if InternLM 20B feels slow on Intel Data Center GPU Max 1550 128GB?

Prefer CUDA if you want the path of least resistance. If your goal is maximum runtime coverage, easier troubleshooting, and better support for new local AI releases, CUDA is usually still the safer upgrade path.

Would CUDA be a better path than Intel Data Center GPU Max 1550 128GB for InternLM 20B?

Often yes, if your goal is the easiest setup and the widest runtime support. Intel can offer attractive memory capacity, but CUDA still tends to win on tooling maturity, guides, kernels, and model coverage for local AI.

See all results for Intel Data Center GPU Max 1550 128GB See all hardware for InternLM 20B

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