ModelSpec - AI Hardware Requirements Calculator

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Model Parameters

Architecture

Params B

Active B

Layers

d_model

Heads

KV Heads

FFN Mult

Vocab

Context

Precision

Mode

Batch Size

Seq Len

LoRA Rank

LoRA Alpha

Quant OH %

KV Factor x

VRAM

GPU VRAM

-

Enter params

+ Details

RAM

System RAM

-

Host memory

+ Details

FLOP

FLOPs / Token

-

Forward pass

+ Details

BW

Min Bandwidth

-

Mem bandwidth

+ Details

Search a model above or enter parameters, then calculate.

My System Checker

Your Hardware

Select GPU

VRAM GB

BW GB/s

# GPUs

System RAM GB

Model B params

Apple Silicon (unified memory)

Enter your hardware specs and model size for a compatibility report.

GPU Reference Library

GPU	Tier	VRAM	BW	TFLOPS	Price	Best For

Model Configuration

{ }

No Model Selected

Search and select a model from the calculator to view its full configuration data.

Guide

AI model hardware concepts explained

Model Config

config.json

Parameter	Value	Type