GPUs / Qualcomm

Adreno X1-85

Memory
LPDDR5X
Bus
128-bit
Published peak
135 GB/s
Capacity
16 GB

Measured

Read
74.1GB/s
Write
71.6GB/s
Copy
65.1GB/s
Random
7.87GB/s
Latency
372ns
Sustain
63.0GB/s

Medians of 2 verified runs from 1 operator. Read reaches 55 % of the published peak.

41.12 verified runs, median 41.341.3

Local AI speed

ModelParameters4-bit, tokens/s8-bit, tokens/s
Llama 3.1 8B8.03B≤ 18≤ 9.2
Qwen 2.5 14B14.7B≤ 10≤ 5.0
gpt-oss-20b21B, 3.6B active≤ 41Does not fit
Mistral Small 24B24B≤ 6.2Does not fit
Qwen 2.5 32B32.5BDoes not fitDoes not fit
Llama 3.3 70B70.6BDoes not fitDoes not fit
gpt-oss-120b117B, 5.1B activeDoes not fitDoes not fit
Upper bounds: median read ÷ bytes read per token. Mixture-of-experts models read only their active experts. Fit checks weights against the 16 GB configuration; the KV cache needs room on top.

Top operators

#OperatorScoreReadDate
1OP-C54B4241.380.8 GB/s2026-09-27

Full Adreno X1-85 leaderboard