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 performance
Gaming score: geometric mean of in-game FPS, normalized so the RTX 5090 = 100. Render and synthetic scores are in the Benchmarks section below.
1080p Gaming
1440p Gaming
4K Gaming
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). These scores apply to all board versions of this chip.
Benchmarks
Standardized benchmark scores for this chip, each compared to the fastest card we track and linked to its source. They apply to every board version.
3D & gaming
Render
Compute & AI
Where to buy
Every in-stock retailer we track, cheapest first.
- AmazonCHEAPEST$1,399.99In stockUpdated 2026-08-24
| Retailer | Price | Availability | Updated | Buy |
|---|---|---|---|---|
| AmazonCHEAPEST | $1,399.99 | In Stock | 2026-08-24 | |
Specifications
GPU chip
- Chip
- Radeon RX 7900 XTX
- Architecture
- RDNA 3 Navi 31
- Process node
- TSMC N5/N6
- Shader cores
- 6,144
- SM count
- 96
- Texture units (TMUs)
- 384
- Render outputs (ROPs)
- 192
- RT cores
- 96 · 2nd gen
- Tensor / AI cores
- 192 · 1st gen
Memory
- VRAM
- 24GB GDDR6
- Memory bus
- 384-bit
- Bandwidth
- 960 GB/s
- Memory speed
- 20 Gbps
- Infinity Cache
- 96 MB
GPU die
- Foundry
- TSMC
- Die size
- 529 mm²
- Transistors
- 57.7 billion
- Generation
- Radeon RX 7000
Display & connectivity
- Max resolution
- 7680 × 4320
- Max displays
- 4
- HDCP
- 2.3
APIs & software
- DirectX
- 12 Ultimate (12.2)
- Vulkan
- 1.3
- OpenGL
- 4.6
- OpenCL
- 2.2
- Shader model
- 6.8
Platform features
- Upscaling
- FSR 4.1 (ML upscaling), FSR 3 Frame Generation
- Also runs
- XeSS 2, XeSS 2 Frame Generation
- Resizable BAR
- Yes
Video encoding & decoding
| Codec | Encode | Decode |
|---|---|---|
| H.264 / AVC | Supported | Supported |
| H.265 / HEVC | Supported | Supported |
| AV1 | Supported | Supported |
| VP9 | Not supported | Supported |
Encoder: VCN 4.0 · Decoder: VCN 4.0
Board
- Boost clock
- 2500 MHz(reference)
- Base clock
- 1900 MHz
- TDP
- 355W
- Recommended PSU
- 800W
- Power connectors
- Reference design:
2 8-pinThis card: 3 8-pin
Physical
- Cooling
- Air
- Warranty
- 2 years
- Length
- Reference design:
287 mmThis card: 330 mm - Slot width
- Reference design:
2 slotsThis card: 3 slots - Outputs
- Reference design:
1 HDMI 2.1a, 2 Displayport 2.1, 1 USB Type-CThis card: 1 HDMI 2.1a, 3 Displayport 2.1
Identifiers
- ASIN
- B0BTPK5J68
- EAN
- 4710483941733
Chip-level specs — cores, memory, die, APIs, media engine and platform features — are shared by every version of the Radeon RX 7900 XTX. The Board, Physical and Identifier boxes are specific to this ASRock variant; a struck-through value shows where it differs from the reference design.
Across generations
Where the Radeon RX 7900 XTX sits in ASRock’s lineup — the generation before and after.
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