MB Memory Bandwidth
Explorer

32 catalogued models

Which machine runs which model.

A model gets a page when the catalog actually discriminates between machines for it. Decode ranges are estimates at a 1,024-token position, batch 1, single stream.

Generated pages

Browse 5 models

Each page ranks every sourced configuration this model runs on.

8 B parameters · dense

Llama 3.1 8B Instruct

56 sourced configurations run it. Every configuration with a supported backend path has the memory to hold it.

1.2 B parameters · dense

Llama 3.2 1B Instruct

56 sourced configurations run it. Every configuration with a supported backend path has the memory to hold it.

3.2 B parameters · dense

Llama 3.2 3B Instruct

56 sourced configurations run it. Every configuration with a supported backend path has the memory to hold it.

70.6 B parameters · dense

Llama 3.3 70B Instruct

40 sourced configurations run it. 16 do not have the memory to hold it.

30.5 B parameters · mixture of experts

Qwen3 30B-A3B

56 sourced configurations run it. Every configuration with a supported backend path has the memory to hold it.

Catalogued, not estimated

27 models with no page

These stay selectable in the calculator. No fit or speed result is invented for them.

Model Parameters Attention Why no result is published
DeepSeek-R1 deepseek · released 2025-01 · model ID deepseek-r1 671 B total 37 B active per token. MLA Backend target vllm-cuda has not declared a sourced MLA execution path. The candidate formulas differ by roughly an order of magnitude, so no fit verdict and no token rate are published for this combination (§2.3.2).
DeepSeek-V3 deepseek · released 2024-12 · model ID deepseek-v3 671 B total 37 B active per token. MLA Backend target vllm-cuda has not declared a sourced MLA execution path. The candidate formulas differ by roughly an order of magnitude, so no fit verdict and no token rate are published for this combination (§2.3.2).
DeepSeek-V4-Flash 284B-A13B deepseek · released 2026-04 · model ID deepseek-v4-flash 284 B total 13 B active per token. DeepSeek-V4 sparse/latent attention The model uses DeepSeek-V4 sparse/latent attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
DeepSeek-V4-Pro 1.6T-A49B deepseek · released 2026-04 · model ID deepseek-v4-pro 1,600 B total 49 B active per token. DeepSeek-V4 sparse/latent attention The model uses DeepSeek-V4 sparse/latent attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Gemma 4 12B Unified Instruct gemma · released 2026-06 · model ID gemma-4-12b 12 B total 12 B active per token. hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE The model uses hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Gemma 4 26B-A4B Instruct gemma · released 2026-03 · model ID gemma-4-26b-a4b 25.8 B total 3.8 B active per token. hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE The model uses hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Gemma 4 31B Instruct gemma · released 2026-03 · model ID gemma-4-31b 31.3 B total 31.3 B active per token. hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE The model uses hybrid sliding-window/global attention; global layers cache unified K/V (no v_proj) and use p-RoPE. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Gemma 4 E2B Instruct gemma · released 2026-03 · model ID gemma-4-e2b 5.1 B total 5.1 B active per token. hybrid sliding-window/global attention with cross-layer KV sharing (20 of 35 layers) and per-layer embeddings The model uses hybrid sliding-window/global attention with cross-layer KV sharing (20 of 35 layers) and per-layer embeddings. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Gemma 4 E4B Instruct gemma · released 2026-03 · model ID gemma-4-e4b 8 B total 8 B active per token. hybrid sliding-window/global attention with cross-layer KV sharing (18 of 42 layers) and per-layer embeddings The model uses hybrid sliding-window/global attention with cross-layer KV sharing (18 of 42 layers) and per-layer embeddings. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
GLM-5.1 744B-A40B glm · released 2026-04 · model ID glm-5.1 744 B total 40 B active per token. MLA with DeepSeek Sparse Attention The model uses MLA with DeepSeek Sparse Attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
GLM-5.2 744B-A40B glm · released 2026-06 · model ID glm-5.2 744 B total 40 B active per token. MLA with IndexShare DeepSeek Sparse Attention The model uses MLA with IndexShare DeepSeek Sparse Attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
GLM-5.3-Flash 320B-A18B glm · released 2026-08 · model ID glm-5.3-flash 320 B total 18 B active per token. hybrid sparse/linear attention The model uses hybrid sparse/linear attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
GLM-5.3 744B-A40B glm · released 2026-08 · model ID glm-5.3 744 B total 40 B active per token. MLA with IndexShare DeepSeek Sparse Attention The model uses MLA with IndexShare DeepSeek Sparse Attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
GLM-5 744B-A40B glm · released 2026-02 · model ID glm-5 744 B total 40 B active per token. MLA with DeepSeek Sparse Attention The model uses MLA with DeepSeek Sparse Attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 0.8B qwen · released 2026-02 · model ID qwen3.5-0.8b 0.9 B total 0.9 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 122B-A10B qwen · released 2026-02 · model ID qwen3.5-122b-a10b 125.1 B total 10 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 27B qwen · released 2026-02 · model ID qwen3.5-27b 27.8 B total 27.8 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 2B qwen · released 2026-02 · model ID qwen3.5-2b 2.3 B total 2.3 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 35B-A3B qwen · released 2026-02 · model ID qwen3.5-35b-a3b 36 B total 3 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 397B-A17B qwen · released 2026-02 · model ID qwen3.5-397b-a17b 403.4 B total 17 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 4B qwen · released 2026-02 · model ID qwen3.5-4b 4.7 B total 4.7 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.5 9B qwen · released 2026-02 · model ID qwen3.5-9b 9.7 B total 9.7 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.6 27B qwen · released 2026-04 · model ID qwen3.6-27b 27.8 B total 27.8 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.6 35B-A3B qwen · released 2026-04 · model ID qwen3.6-35b-a3b 36 B total 3 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.8 2.4T-A95B qwen · released 2026-08 · model ID qwen3.8-2.4t-a95b 2,446.2 B total 95 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.8 27B qwen · released 2026-08 · model ID qwen3.8-27b 27.8 B total 27.8 B active per token. hybrid linear/full attention The model uses hybrid linear/full attention. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.
Qwen3.8 Flash-Next 180B-A6B qwen · released 2026-08 · model ID qwen3.8-flash-next 180 B total 6 B active per token. hybrid linear/full attention with n-gram embeddings The model uses hybrid linear/full attention with n-gram embeddings. Its KV storage, decode traffic, and prefill cost do not have a reviewed formula, so no fit verdict or speed is published.

Still useful

What a model without a page still gives you

Weight accounting depends on sourced parameter counts alone.

Weight bytes stay publishable for every catalogued model, because they need no attention formula. Fit, decode, and prefill do need one, and the site withholds all three rather than borrowing a formula from a different architecture. Open the calculator to select any of these models against a configuration and read the reason back with the inputs it was resolved from.