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Titan X Pascal 12GB vs Titan Xp 12GB for Local LLMs

The Titan Xp 12GB has about 14% more memory bandwidth (548 vs 480 GB/s). Batch-1 decode tracks bandwidth closely, so a model that fits both cards should decode roughly 14% faster on the Titan Xp 12GB. Both fit the same number of catalog models at Q4/8K (18 of 69; 12 vs 12 GB VRAM). MSRP is $1,200 for the Titan X Pascal 12GB vs $1,200 for the Titan Xp 12GB. MSRP is a launch list price, not live retail — Amazon prices move; click through for the current price. In the Q4/8K head-to-head below (41 shared models), the Titan Xp 12GB posts the higher tok/s in 41 rows vs 0. Methodology.

Spec comparison

Titan X Pascal 12GBTitan Xp 12GB
VendorNVIDIANVIDIA
VRAM12 GB12 GB
Memory typeGDDR5XGDDR5X
Memory bandwidth480 GB/s548 GB/s
TDP250 W250 W
MSRP (list)$1,200$1,200
BuySearch Amazon (affiliate)Search Amazon (affiliate)

MSRP is the launch list price, not live retail. Buy links are Amazon affiliate links — the price after you click is the live price.

Q4 / 8K head-to-head — top 15 of 41 shared models

ModelParams (B)Titan X Pascal 12GB tok/sTitan X Pascal 12GB fitsTitan Xp 12GB tok/sTitan Xp 12GB fitsWinner
MiniCPM5-1B1.08282.8 est.Yes322.9 est.YesTitan Xp 12GB
gpt-oss-20b21.5189.3 est.No216.2 est.NoTitan Xp 12GB
Qwen3.5-2B2.0152.7 est.Yes174.4 est.YesTitan Xp 12GB
Nemotron-3-Nano-Omni-30B-A3B-Reasoning-BF1630.0135.8 est.No155.0 est.NoTitan Xp 12GB
gemma-4-26B-A4B-it25.2135.0 est.No154.1 est.NoTitan Xp 12GB
DeepSeek-R1-0528-Qwen3-8B-layer-mix-bpw-3.8-mlx2.3132.8 est.Yes151.6 est.YesTitan Xp 12GB
Qwen3-30B-A3B-Instruct-250730.5123.5 est.No141.0 est.NoTitan Xp 12GB
GLM-4.7-Flash31.2118.5 est.No135.3 est.NoTitan Xp 12GB
Qwen3.5-35B-A3B34.7102.6 est.No117.2 est.NoTitan Xp 12GB
qwen35b-a3b-fable-sft-abliterated34.797.5 est.No111.3 est.NoTitan Xp 12GB
Ornith-1.0-35B35.096.0 est.No109.6 est.NoTitan Xp 12GB
Qwen3.6-35B-A3B36.095.7 est.No109.2 est.NoTitan Xp 12GB
Llama-3.2-3B-Instruct3.295.5 est.Yes109.0 est.YesTitan Xp 12GB
Qwen3-4B-Instruct-25074.076.4 est.Yes87.2 est.YesTitan Xp 12GB
NVIDIA-Nemotron-3-Nano-4B-BF164.076.4 est.Yes87.2 est.YesTitan Xp 12GB

est. = bandwidth-based estimate; measured = curated real benchmark that overrides the estimate. Fits = weights + KV(8K) + 1 GB overhead ≤ 95% of VRAM.

Fit coverage at Q4 / 8K

Titan X Pascal 12GBTitan Xp 12GB
Catalog models that fit18 of 6918 of 69
Largest exclusive fit

Titan X Pascal 12GB details → · Titan Xp 12GB details →