rtx-3090

11 articles · newest first

Hardware

a 5-year-old GPU still beats nvidia's newest budget card for local AI — here's the catch

24GB of old VRAM versus 16GB of new, low-power silicon — I ran the real math on what each one costs, up front and over a year.

Ravi Malhotra · 6d ago · 6 min

AI

I priced out every way to run a 70B AI model at home — the cheapest one isn't what you'd guess

Four real paths to running a 70B-parameter model on your own hardware or by the hour — priced out with actual 2026 numbers.

Lena Fischer · 6d ago · 8 min

Hardware

nvidia's about to hike GPU prices again — here's the actual buy-or-wait math for local AI

A third price hike in one year is reportedly coming for the RTX 50 series — and if you're buying VRAM for local AI, not frame rates, the calculation isn't the same as 'wait for a sale.'

Ravi Malhotra · 6d ago · 7 min

Hardware

the best GPU for running AI locally in 2026 — and the one number that beats every benchmark

For local AI, VRAM beats speed every time. A slower card with more memory runs bigger models than a faster one that can't fit them. Here's the best GPU for local AI at every budget.

Ravi Malhotra · Aug 1 · 10 min

AI

buying a used RTX 3090 for local AI? the 5-minute check that saves you from a $1,000 mistake

A used 3090 is still the best VRAM-per-dollar card for local AI — but many were mining cards, and the memory runs hot. Here's exactly what to check before you hand over the cash.

Ravi Malhotra · Jul 28 · 9 min

AI

the best GPU for running Qwen3-32B locally isn't the fastest one — it's the cheapest with 24GB

Qwen3-32B at Q4 needs about 20GB of VRAM, which rules out every 16GB card and makes this a simple question: what's the cheapest 24GB GPU that runs it well? The answer is used.

Ravi Malhotra · Jul 28 · 9 min

AI

the honest answer to 'what GPU runs Llama 70B': not the one you were about to buy

Llama 70B needs about 40GB of VRAM to run well — and almost no single consumer card has it. Here's what actually works, visualized, with the measured speeds and real costs for each path.

Ravi Malhotra · Jul 23 · 10 min

AI

the $549 new GPU or the $1,000 used one? for local AI, the old card wins — and it's not close

A new RTX 5060 Ti 16GB looks like the safe budget pick. But 16GB can't load the 32B models a used 3090 runs at 30 tokens/sec — and in local AI, the card that opens the file wins before speed matters.

Ravi Malhotra · Jul 22 · 9 min

AI

A $1,000 used GPU ties the $9,499 Mac Studio at the benchmark everyone runs

On small-model generation they're within 5% of each other — measured. The real decision lives in what each machine physically can't do, and nobody selling either will tell you.

Lena Fischer · Jul 22 · 10 min

AI

The 4090 is 34% faster for local AI. Your electricity meter can't tell them apart

Measured llama.cpp numbers say the 4090 wins every speed test and costs twice as much — while energy per generated token is a dead heat. Here's who each card is actually for.

Ravi Malhotra · Jul 22 · 9 min

Hardware

Two 3090s or one 5090? The answer isn't the one everyone gives

The dual-3090 build doesn't give you double the bandwidth for chat — and the reason has nothing to do with the cards. What the measurements actually say.

Ravi Malhotra · Jul 21 · 11 min