ASRock RX 7900 XTX Phantom OC
The ASRock RX 7900 XTX Phantom OC is ASRock’s version of the Radeon RX 7900 XTX. At 330 mm it’s 43 mm longer than the 287 mm reference design. It uses 3 8-pin rather than the reference 2 8-pin. Its video outputs (1 HDMI 2.1a, 3 Displayport 2.1) differ from the reference (1 HDMI 2.1a, 2 Displayport 2.1, 1 USB Type-C). At 3 slots it’s wider than the 2-slot reference design. Below you’ll find every current retailer price and the full spec sheet.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Gaming & render performance
Gaming score: geometric mean of in-game FPS, normalized so the RTX 5090 = 100. Blender: samples/min from Blender Open Data.
1080p Gaming
1440p Gaming
4K Gaming
Blender
The Radeon RX 7900 XTX scores 88.1 at 1080p, 71.8 at 1440p, and 60.8 at 4K on a scale where 100 = the fastest GPU we test (RTX 5090). In Blender it renders 4,055 samples per minute. These scores apply to all board versions of this chip.
Where to buy
Every in-stock retailer we track, cheapest first.
| Retailer | Price | Availability | Updated | Buy |
|---|---|---|---|---|
| AmazonCHEAPEST | $1,445.99 | In Stock | 2026-07-01 |  |
Specifications
GPU chip
- Chip
- Radeon RX 7900 XTX
- Architecture
- RDNA 3 Navi 31
- Process node
- TSMC N5/N6
- Shader cores
- 6,144
- RT cores
- 96
- Tensor / AI cores
- 192
- Upscaling
- FSR 3
- AV1 encode
- Yes
Memory
- VRAM
- 24GB GDDR6
- Memory bus
- 384-bit
- Bandwidth
- 960 GB/s
- Memory speed
- 20 Gbps
Board
- Boost clock
- 2500 MHz
- Base clock
- 1900 MHz
- TDP
- 355W
- Recommended PSU
- 800W
- Power connectors
- 2 8-pin→3 8-pin
Physical
- Cooling
- Air
- Length
- 287 mm→330 mm
- Slot width
- 2 slots→3 slots
- Outputs
- 1 HDMI 2.1a, 2 Displayport 2.1, 1 USB Type-C→1 HDMI 2.1a, 3 Displayport 2.1
Identifiers
- ASIN
- B0BTPK5J68
Chip-level specs (memory, cores, architecture) are shared across all versions of the Radeon RX 7900 XTX. Board specs (boost clock, length, cooling) are specific to this variant.
Affiliate disclosure: Some “Buy” links are affiliate links. MaxMyBuild may earn a commission at no extra cost to you if you make a purchase through these links. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. Prices shown are approximate and may differ at the retailer. “Search” links are non-affiliate and provided for convenience only.