Google
MLX Community

Gemma 4 31B IT benchmark on an Apple's logo.M5 Max · 64 GB

<- Runs

Prompt tokens

40,960

Generation tokens

10,240

Trials passed

10/10

Verified

19.1 tok/s

440.2 tok/s

Peak memory

23.00/64 GB

Runs poorly

Trials

Decode / Prefill Speeds

Metadata

metadata.json
{
"runId": "run_517ef47b-9407-426c-aeb3-0904466a3588",
"bundleId": "mlx-gemma-4-31b-it-4bit-83d1be",
"status": "verified",
"promptTokens": 40960,
"completionTokens": 10240,
"contextLength": 5120,
"harness": {
"version": "0.1.21",
"gitSha": "unknown"
},
"runtime": {
"name": "mlx_lm",
"version": "0.31.3",
"buildFlags": null
},
"model": {
"displayName": "Gemma 4 31B IT",
"format": "mlx",
"quant": "4bit",
"architecture": "gemma4",
"source": "mlx-community/gemma-4-31b-it-4bit",
"fileSizeBytes": 18412016832,
"lab": {
"name": "Google",
"slug": "google"
},
"quantizedBy": {
"name": "MLX Community",
"slug": "mlx-community"
}
},
"device": {
"cpu": "Apple M5 Max",
"cpuCores": 18,
"gpu": "Apple M5 Max",
"gpuCores": 40,
"gpuCount": 1,
"ramGb": 64,
"osName": "macOS",
"osVersion": "26.5"
},
"decodeTpsMean": 19.1,
"prefillTpsMean": 440.2,
"ttftP50Ms": 9430.07,
"idleTpsMean": 18432,
"peakRssMb": 23552,
"trialsPassed": 10,
"trialsTotal": 10,
"runnabilityScore": 0.49791547619047616,
"bundleSha256": "4348d86b5b18200bc6f4fc823354403a8aceee8a56ec83f2183aba79b891d11a",
"createdAt": "2026-04-24T19:32:17.367Z"
}