Skip to main content
GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card - 16GB GDDR6 256-bit, Windforce Cooling System, Metal Back Plate, DP 2.1, HDMI 2.1, AMD RDNA 3 Architecture, GV-R78XTGAMING OC-16GD
GIGABYTE

GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card

Bottom line: The GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card ($978.00 on Amazon as of 2026-10-20 16:14 UTC): 16GB of GDDR6 on a 256-bit bus for memory-heavy games and high-res textures; main trade-off: 700W recommended PSU may mean a power supply upgrade for smaller builds.

$978.00

As an Amazon Associate, SpecPicks earns from qualifying purchases. Full disclosure →

Buy on Amazon — $978.00 Compare to similar graphics cards

By , Founder & Editor-in-Chief · Listing data updated

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.

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 16GB of GDDR6 on a 256-bit bus for memory-heavy games and high-res textures
  • ✓ 2565 MHz boost clock on the Gaming OC model
  • ✓ Windforce cooler: 3 x 90mm fans, 7 composite copper heat pipes, copper GPU plate
  • ✓ 2 x DisplayPort 2.1 and 2 x HDMI 2.1 outputs for multi-monitor setups
  • ✓ AV1 encoding and hardware ray tracing from AMD RDNA 3

Cons

  • ✗ 700W recommended PSU may mean a power supply upgrade for smaller builds
  • ✗ Triple-fan card; check the listing for length and case clearance
  • ✗ PCIe 4.0 interface, not PCIe 5.0
  • ✗ Uses GDDR6 memory rather than faster GDDR7

Manufacturer description

The GIGABYTE Radeon RX 7800 XT Gaming OC 16GB graphics card is built on AMD's RDNA 3 architecture. It pairs 16GB of GDDR6 memory with a 256-bit memory bus, which gives you room for high-resolution texture packs and memory-heavy games. The Gaming OC model has a boost clock of 2565 MHz. GIGABYTE's Windforce cooling system handles the heat. It uses three 90mm blade fans, seven composite copper heat pipes and a large copper plate that sits directly on the GPU. The fans are 3D active fans, so they switch off under light loads, and the card has a metal back plate and RGB Fusion lighting. For…

SpecPicks Verdict

SpecPicks scored GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the graphics cards category. GIGABYTE'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.

Frequently Asked Questions

What power supply do I need for the GIGABYTE RX 7800 XT Gaming OC?

GIGABYTE recommends a 700W power supply. Check the product listing for the required PCIe power connectors before you buy.

What warranty comes with this graphics card?

The listing says it has a 3-year warranty. Check GIGABYTE's warranty page or the product listing for current terms and registration requirements.

How many monitors can I connect, and what ports does it have?

The card has 2 x DisplayPort 2.1 and 2 x HDMI 2.1 outputs, so there are four display outputs in total.

How is the GIGABYTE RX 7800 XT Gaming OC cooled?

It uses the Windforce cooling system: three 90mm blade fans, seven composite copper heat pipes and a large copper plate that sits directly on the GPU. It also has 3D active fans and a metal back plate.

Does the RX 7800 XT support ray tracing and AV1 encoding?

Yes. The RDNA 3 architecture includes hardware ray tracing, AI accelerators and AV1 encoding, and the card supports DirectX 12 Ultimate.

Video review

Thank you for not spitting in my face – AMD Radeon RX 7700 XT & 7800 XT Review — Linus Tech Tips on YouTube

Key Features

  • Supported Technologies: AMD RDNA 3 architecture, advanced raytracing, AI accelerator, AV1 encoding, AMD Radiance Display Engine
  • Core & Clocks: Boost Clock 2565 MHz, Memory Size 16GB, Memory Type GDDR6, Memory Bus 256-bit
  • Cooling: Windforce cooling system, 3 x 90mm blade fans, 7 composite copper heat pipes, a large coper plate directly touches the GPU, 3D active fans and Screen cooling. RGB fusion
  • I/O & Connectivity: PCIE 4.0, 2 x DisplayPort 2.1, 2 x HDMI 2.1, DirectX 12 Ultimate
  • Recommended Power Supply: 700W.3 years Warranty

Full Specifications

BrandGIGABYTE
GPU SeriesAMD Radeon RX 7000 Series
Model NameGV-R78XTGAMING OC-16GD
Unit Count1 Count
Model NumberGV-R78XTGAMING OC-16GD
Core & ClocksBoost Clock 2565 MHz, Memory Size 16GB, Memory Type GDDR6, Memory Bus 256-bit
Built-In MediaQuick Start Guide
Number of Fans3
Mfr Part NumberGV-R78XTGAMING OC-16GD
Video ProcessorAMD
Antenna LocationGaming
Graphics Card Ram16 GB
Graphics Ram Size16 GB
Graphics Ram TypeGDDR6
Compatible DevicesDesktop
I/O & ConnectivityPCIE 4.0, 2 x DisplayPort 2.1, 2 x HDMI 2.1, DirectX 12 Ultimate
Memory Clock Speed19500 MHz
Graphics CoprocessorAMD Radeon RX 7800 XT
Graphics DescriptionDedicated
Item Dimensions L x W11.89"L x 5.12"W
Full listing titleGIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card - 16GB GDDR6 256-bit, Windforce Cooling System, Metal Back Plate, DP 2.1, HDMI 2.1, AMD RDNA 3 Architecture, GV-R78XTGAMING OC-16GD

Performance Data

View gaming FPS, AI inference throughput, and synthetic scores for the Radeon RX 7800 XT — the core hardware component in this product. Benchmarks sourced from TechPowerUp, PassMark, and the r/LocalLLaMA community.

Which local LLMs fit in 16 GB?

16 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) — needs 20 GB+
  • ❌ 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 11 community runs from 9 sources, the Radeon RX 7800 XT generates a median 100.9 tok/s on 7–9B models at Q4 (per LocalScore.ai).

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

Ready to buy?

GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card - 16GB GDDR6 256-bit, Windforce Cooling System, Metal Back Plate, DP 2.1, HDMI 2.1, AMD RDNA 3 Architecture, GV-R78XTGAMING OC-16GD is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $978.00

*Price sourced from Amazon.com. Last updated 2026-10-20. Price and availability subject to change.

Keep exploring SpecPicks

Other buying guides

Browse the catalog

Editorial

More guides & deep dives from the SpecPicks archive

Browse all articles & guides →

More reviews from the SpecPicks archive

Browse all reviews →

Earliest SpecPicks reviews

Browse full archive →
GIGABYTE Radeon RX 7800 XT Gaming OC 16GB Graphics Card - 16GB GDDR6 256-bit, Windforce Cooling System, Metal Back Plate, DP 2.1, HDMI 2.1, AMD RDNA 3 Architecture, GV-R78XTGAMING OC-16GD
$978.00
View on Amazon →