This article covers GIGABYTE RTX5090 GDDR7 32GB グラフィックボード.

Overview

GIGABYTE's flagship graphics card, the GV-N5090GAMING OC-32GD, is powered by the NVIDIA GeForce RTX 5090 GPU. It features 32 GB of GDDR7 memory on a 512-bit bus, with a boost clock of 2550 MHz, delivering extraordinary performance for 4K/8K gaming, AI inference, and 3D rendering. GIGABYTE's triple-fan WINDFORCE cooling system keeps temperatures in check even under sustained loads. This card sits at the very top of the consumer GPU market, offering the highest raw performance available today. Priced around ¥770,000, it is a significant investment, but the payoff is immense: you can max out the latest titles with ray tracing at high frame rates, train AI models at home, or edit 8K video smoothly. The GPU itself is NVIDIA's RTX 5090 with enhanced CUDA, RT, and Tensor cores, fully supporting DLSS 4 and other next-gen features. This GV-N5090GAMING OC-32GD is the overclocked variant, running slightly faster than the Founders Edition, and is ideal for enthusiasts building a no-compromise rig. Its large dual-slot-plus design and premium build quality make it a centerpiece for any high-end system.

Compatibility Guide

PCIe 5.0 x16 interface; backward compatible with PCIe 4.0/3.0 motherboards, with negligible real-world performance difference. Requires one 16-pin (12VHPWR) power connector. Use an ATX 3.0/3.1 power supply for best compatibility, or use the included adapter to connect two 8-pin cables. TDP of the RTX 5090 is around 600W, so a minimum 850W PSU is recommended, and 1000W+ for overclocking or heavy loads. * Card dimensions: 342mm length, 152mm width, 70mm thickness (3 slots). Ensure your case can accommodate such a large GPU; many mid-tower cases will not fit it. Measure your case's maximum GPU clearance before purchase.

Product Info

Released in early 2025, this card is sold through GIGABYTE authorized distributors in Japan with a combined warranty of up to 4 years. Its price tier is ultra-premium, reflecting its top-tier performance and factory overclock. The market positioning is clear: it is the most powerful consumer GPU you can buy, aimed at users who demand the absolute best without compromise.

Best Use Cases

Enthusiast 4K/8K Gamer: If you want to play the latest AAA titles at maximum settings with ray tracing and DLSS 4, achieving 60–144 fps at 4K, this card is unmatched. However, for 1080p or 1440p gaming, it's overkill; an RTX 5070 or 5080 offers better value. AI/ML Enthusiast: For running large language models or image generation locally, the 32 GB VRAM is a huge advantage, allowing many models to fit entirely in GPU memory. Note that this card does not support NVLink for multi-GPU memory sharing, so if you need multi-GPU scaling, consider professional solutions. * Creative Professional: Video editors (DaVinci Resolve, Premiere Pro) and 3D artists (Blender, Octane) will see massive performance gains compared to previous generations, especially for 8K RAW editing and complex scene rendering. Verify that your software version supports the RTX 5090 before purchasing. ## Alternatives
ASUS ROG STRIX RTX 5090 OC: A near-identical competitor with similar performance and price. ASUS offers Aura Sync RGB and a slightly different cooling design. The GIGABYTE card is often quieter under load thanks to its WINDFORCE fans. NVIDIA GeForce RTX 5090 Founders Edition: The reference card costs significantly less (¥50–100k difference) but has a lower boost clock and a dual-slot cooler that may run warmer. If you don't need the extra factory overclock and prefer a smaller form factor, the FE is a viable alternative.

Things to Consider

This card is huge and heavy — triple-check your case dimensions and PSU capacity. At 342mm, it won't fit in many mid-tower cases. The 32 GB VRAM is excessive for current gaming, so if your primary use is gaming at 1440p or 4K, you can save money with an RTX 5080. The 16-pin power connector requires careful cable routing to avoid melting issues; do not bend the cable sharply near the connector. Availability may be tight at launch, and prices could be inflated. Aim to buy from an authorized dealer at MSRP. Overclocking potential is limited as this card already runs fast, but you can gain a few percent more with manual tuning. ## FAQ Q: Is a 850W power supply enough for the RTX 5090? A: For stock operation with a mid-range CPU, yes. But with a high-end CPU like Core i9 or Ryzen 9 and overclocking, transient spikes can exceed 1000W. A 1000W PSU is recommended for stability. Q: Will performance suffer on a PCIe 4.0 motherboard? A: No. Real-world benchmarks show less than 1–3% difference between PCIe 4.0 and 5.0 for gaming and content creation. You won't notice it. * Q: Do I really need 32 GB of VRAM? A: Only if you work with very large datasets, 8K textures, or run AI models locally. For today's games, 16 GB is plenty. This amount is future-proofing but overkill for most users.

Product Disclosure (Amazon)

  • Manufacturer: GIGABYTE
  • ASIN: B0DVSNYK3W
  • Note: This article covers a manufacturer-made product based on Amazon listing details.