PowerColor

PowerColor Hellhound AMD Radeon RX 7900 XT Graphics Card

Name: PowerColor Hellhound AMD Radeon RX 7900 XT Graphics Card
Brand: PowerColor
SKU: B0BMWHJ5Q7

Status: PowerColor Hellhound AMD Radeon RX 7900 XT… (RX 7900 XT graphics card): Unavailable on Amazon as of 2026-10-20 22:17 UTC. Closest in-stock match (same RX 7900 XT graphics card): Sapphire 21323-01-20G AMD Radeon RX 7900 XT…, $869.99 on Amazon as of 2026-10-21 10:15 UTC (price may vary). eBay sellers may still list this model new or used.

View Current Price — $869.99 🛒 Search eBay for this model

Bottom line: The PowerColor Hellhound AMD Radeon RX 7900 XT Graphics Card: 20GB GDDR6 on a 320-bit bus for 4K gaming and high-res texture packs; main trade-off: requires a 750W PSU minimum, so older builds may need a power upgrade.

Unavailable on Amazon as of 2026-10-20 22:17 UTC

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Currently unavailable on Amazon. Not the same product — 3 in-stock alternatives with matching specs:

Same RX 7900 XT graphics card: Sapphire 21323-01-20G AMD Radeon RX 7900 XT… — $869.99 on Amazon as of 2026-10-21 10:15 UTC (price may vary).

View Current Price — $869.99

Same RX 7900 XT graphics card: Sapphire Pulse AMD Radeon RX 7900 XT Triple Fan… — $1,139.99 on Amazon as of 2026-10-21 10:13 UTC (price may vary).

View Current Price — $1,139.99

Same RX 7900 XT graphics card: XFX Speedster MERC310 AMD Radeon RX 7900 XT… — $1,199.99 on Amazon as of 2026-10-21 10:15 UTC (price may vary).

View Current Price — $1,199.99

Original listing (currently unavailable) → Compare to similar graphics cards

By Mike Perry, Founder & Editor-in-Chief · Listing data updated 2026-10-20

Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. About the author →

Pros & Cons

Pros

✓ 20GB GDDR6 on a 320-bit bus for 4K gaming and high-res texture packs
✓ 2500 MHz boost clock (OC mode) driving 5376 stream processors
✓ Triple-fan Hellhound cooler with a quiet Silent BIOS (2025 MHz game clock)
✓ HDMI 2.1 plus three DisplayPort 2.1 outputs for high-refresh multi-monitor rigs

Cons

✗ Requires a 750W PSU minimum, so older builds may need a power upgrade
✗ Uses two 8-pin connectors, not the newer 12VHPWR cable standard
✗ 20GB VRAM sits below the 24GB RX 7900 XTX flagship
✗ RDNA 3 ray-tracing performance trails comparable Nvidia cards

Manufacturer description

PowerColor Hellhound AMD Radeon RX 7900 XT Graphics Card.

SpecPicks Verdict

SpecPicks scored PowerColor Hellhound AMD Radeon RX 7900 XT Graphics Card using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the graphics cards category. PowerColor's graphics cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for graphics cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Video review

The Cheapest* AMD RX 7900 XT: Revisit Benchmarks, & Price Drops vs. 4070 Ti & More — Gamers Nexus on YouTube

Key Features

Video Memory: 20GB GDDR6.Minimum System Power requirement (W) : 750W. Extension Power Connector : Two 8-pin PCI Express Power connectors.
Stream Processor: 5376 Units
Game Clock: 2130 MHz (OC) / 2025 MHz (Silent)
Boost Clock: 2500 MHz (OC) / 2395 MHz (Silent)
Memory Clock: 20.0 Gbps
Memory Interface: 320-bit

Full Specifications

Brand	PowerColor
Game Clock	2130 MHz (OC) / 2025 MHz (Silent)
Model Name	RX7900XT 20G-L/OC
Unit Count	1 Count
Boost Clock	2500 MHz (OC) / 2395 MHz (Silent)
Memory Clock	20.0 Gbps
Model Number	RX7900XT 20G-L/OC
Video Memory	20GB GDDR6.Minimum System Power requirement (W) : 750W. Extension Power Connector : Two 8-pin PCI Express Power connectors.
Built-In Media	Graphics Card
Number of Fans	3
Mfr Part Number	RX7900XT 20G-L/OC
Video Processor	AMD
Antenna Location	Gaming
Memory Interface	320-bit
Stream Processor	5376 Units
Graphics Card Ram	20 GB
Graphics Ram Size	20 GB
Graphics Ram Type	GDDR6
Compatible Devices	Desktop
Memory Clock Speed	20000 MHz

Performance Data

View gaming FPS, AI inference throughput, and synthetic scores for the Radeon RX 7900 XT — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.

Which local LLMs fit in 20 GB?

20 GB holds a 20–27B model at Q4 with a modest context window; 30B-class weights need 24 GB.

✅ 7–9B models (Llama 3.1 8B, Qwen 3 8B) — fits at Q4
✅ 12–14B models (Qwen 3 14B, Phi-4) — fits at Q4
✅ 20–27B models (Gemma 3 27B, Mistral Small) — fits at Q4
❌ 30–35B models (Qwen 3 32B, QwQ 32B) — needs 24 GB+
❌ 70B models (Llama 3.3 70B, Qwen 2.5 72B) — needs 48 GB+

Across 5 community runs from 5 sources, the Radeon RX 7900 XT generates a median 116.2 tok/s on 7–9B models at Q4 (per llm-tracker.info).

Per-model VRAM guide: which GPU for which LLM →

Ready to buy?

Amazon shows no buyable offer for PowerColor Hellhound AMD Radeon RX 7900 XT… at the last check. The closest in-stock match with the same RX 7900 XT graphics card is Sapphire 21323-01-20G AMD Radeon RX 7900 XT…. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

View Current Price — $869.99