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All estimates are approximations based on mathematical models and public specifications. Actual performance may vary. Do not make purchasing decisions based solely on these estimates.

Data sourced from Hugging Face, Ollama, and official model documentation. Model names and logos are trademarks of their respective owners.

© 2026 Will It Run AI — Fase Consulting Ibiza, S.L. (NIF: B57969656)

Home/internlm2 5 20b chat/on RTX 4090 24GB

Can it run?

Can RTX 4090 24GB run internlm2 5 20b chat?

BGood

Runs well

Using Q4_K_M in Ollama

Capabilities:

Fit status

Runs well

Decode

62.8 tok/s

TTFT

3083 ms

Safe context

20K

Memory

18.9 GB / 24.0 GB

Memory breakdown

Weights12.2 GB
KV Cache3.1 GB
Runtime1.2 GB
Headroom2.4 GB

Performance by workload

WorkloadGradeFitDecodeTTFTContext
Agentic CodingCTight fit62.8 tok/s4485 ms35K
ChatBRuns well62.8 tok/s1682 ms11K
CodingBRuns well62.8 tok/s3083 ms20K
RAGCTight fit62.8 tok/s5606 ms35K
ReasoningBRuns well62.8 tok/s3644 ms20K

Quantization options

How internlm2 5 20b chat (20B params) fits at each quantization level on RTX 4090 24GB (24.0 GB usable).

QuantBitsVRAMQualityFit
Q2_K
2
7.8 GB
LowD36
Q3_K_S
3
9.8 GB
LowD38
NVFP4
4
11.2 GB
MediumD39
Q4_K_M
4
12.2 GB
MediumD40
Q5_K_M
5
14.4 GB
HighC42
Q6_KBest for your GPU
6
16.4 GB
HighC43
Q8_0
8
21.4 GB
Very HighC44
F16
16
41.0 GB
MaximumF0

Get started

See all results for RTX 4090 24GBSee all hardware for internlm2 5 20b chat