Overview

It packs 6144 stream processors and 24GB of GDDR6 memory on a 384-bit bus, with a boost clock of 2680MHz and memory clock of 20Gbps. This card is designed for uncompromising 4K gaming, VR, and content creation workloads.
What sets this model apart is its advanced Vapor-X cooling system. A vapor chamber directly contacts the GPU die and memory modules, spreading heat more efficiently than traditional copper heat sinks. Combined with wave-fin heatsink design and triple fans, the card maintains low temperatures even under sustained load. The digital power design with 20 phases ensures precise voltage regulation and excellent power efficiency.
As Sapphire's premium offering, the NITRO+ RX 7900 XTX VAPOR-X targets enthusiasts who demand top-tier performance without compromise. The generous 24GB frame buffer provides headroom for high-resolution textures, ray tracing, and future-proofing against VRAM-heavy titles.

Compatibility Guide

  • Interface: PCI Express 4.0 x16, backward compatible with PCIe 3.0. For optimal bandwidth, a PCIe 4.0 motherboard is recommended.
  • Power: Requires three 8-pin PCIe power connectors. A power supply of at least 850W (1000W recommended) is necessary. Note that this card does not use the 12VHPWR connector, so traditional 8-pin cables are required.
  • Physical dimensions: 320 x 135.75 x 71.6mm. This is a large triple-slot card. Measure your case's maximum GPU length and clearance, especially with power cables attached. Many mid-tower cases can accommodate it, but compact or ITX cases likely will not.
  • Display outputs: Two DisplayPort 2.1 (supports UHBR10, up to 8K 60Hz or 4K 240Hz) and two HDMI 2.1. Ideal for multi-monitor setups and high-refresh-rate displays.

Product Info

It is a high-end, enthusiast-class card with a 2-year warranty through authorized Japanese distributors.
Key specifications:

  • GPU: AMD Radeon RX 7900 XTX (RDNA 3)
  • Stream processors: 6144
  • Game clock: 2510MHz / Boost clock: 2680MHz
  • Memory: 24GB GDDR6, 384-bit, 20Gbps
  • Bus: PCIe 4.0 x16
  • Power connectors: 3x 8-pin
  • Dimensions: 320 x 135.75 x 71.6mm
    The Vapor-X cooling system uses a vapor chamber that contacts both the GPU and memory, providing superior thermal conductivity. Wave fins reduce airflow noise, and the digital VRM with 20 phases ensures stable power delivery for overclocking.

Best Use Cases

  • 4K high-refresh-rate gamers: This card delivers smooth 4K gaming at 60-120+ fps in most titles, especially with FSR upscaling. It excels in rasterization performance, often matching or beating the RTX 4080 Super. However, if ray tracing is your priority, NVIDIA cards still hold an edge.
  • VR enthusiasts and multi-monitor users: 24GB VRAM is ample for VR rendering and triple 4K setups. DisplayPort 2.1 support future-proofs for upcoming high-bandwidth monitors.
  • Content creators using AMD-friendly software: Applications like DaVinci Resolve, Blender (with HIP), and certain 3D renderers benefit from the large VRAM and compute performance. For CUDA-heavy workflows (e.g., Adobe Premiere with certain effects), an NVIDIA card may be preferable.
  • Silence-oriented builders: The semi-passive fan mode stops fans entirely at low loads, making the card inaudible during desktop use. Under load, the triple-fan design remains quieter than many competing high-end cards.

Things to Consider

  • Size and fit: At 320mm length, this card is a tight fit in many cases. Always check your case's maximum GPU length and ensure enough clearance for power cables. Some cases may require removing drive cages or front fans.
  • Power and heat: Peak power draw can exceed 400W under extreme loads. Adequate case airflow is critical to keep temperatures in check. A high-quality 850W+ PSU is mandatory.
  • Competition: The main rivals are the NVIDIA RTX 4080 Super (16GB) and RTX 4090 (24GB). The 7900 XTX offers better value in raw performance per dollar and more VRAM than the 4080 Super, but lags in ray tracing and lacks CUDA. The RTX 4090 is faster overall but significantly more expensive.
  • Power connector requirements: Ensure your PSU has three separate 8-pin PCIe cables. Using daisy-chained cables is not recommended for stability.

FAQ

Q: What PSU wattage do I need for this card?
A: A minimum of 850W is recommended, with 1000W being ideal for overclocking or high-power CPUs. The card itself can draw up to ~400W, so the rest of the system needs headroom.
Q: Will it fit in my case?
A: Measure your case's GPU clearance. The card is 320mm long, 135.75mm tall (including bracket), and 71.6mm wide (triple slot). Add about 30mm for power cables. Cases with GPU length support of

Product Disclosure (Amazon)

  • Manufacturer: SAPPHIRE
  • Seller: Amazon.co.jp
  • Fulfilled by: Amazon.co.jp
  • ASIN: B0BSPW33MZ
  • Note: This article covers a manufacturer-made product based on Amazon listing details.