AMD · GCN 2 · 2015
Radeon R9 390X (Grenada XT)
Radeon R9 390X (Grenada XT): 8 GB GDDR5, 275 W, 2,816 Stream processors. Launched June 2015 at $429.
- Memory
- 8 GB
- Power
- 275 W
- Bus width
- 512 bit
Memory8 GB
1 of 104 in Radeon R9/R7/R5
Power275 W
2 of 83 by higher draw in Radeon R9/R7/R5
Stream processors2,816
4 of 69 in Radeon R9/R7/R5
Launch price$429
7 of 33 in Radeon R9/R7/R5
Current market
Affiliate links — we may earn a commission.
Specifications
Memory
- Capacity
- 8 GB
- Memory type
- GDDR5
- Bus width
- 512 bit
- Bandwidth
- 384 GB/s
Compute
- Stream processors
- 2,816
- TMUs
- 176
- ROPs
- 64
- FP32
- 5,913.6 GFLOPS
- FP64
- 739.2 GFLOPS
- Pixel fill rate
- 67.2 GP/s
- Texture fill rate
- 184.8 GT/s
Board
- TDP
- 275 W
- Bus interface
- PCIe 3.0 x4 x8 ×16
- Form factor
- desktop
- Launch MSRP
- 429 USD
Physical
- Architecture
- GCN 2
- Process
- 28 nm
- Transistors
- 6.2 billion
- Die size
- 438 mm²
- Series
- Radeon R9/R7/R5
- Launch date
- June 2015
Not recorded by the source: generation, codename, sm count and base clock, or 3 further fields.
Die figure
Silicon, made visible
Die area is drawn against the largest recorded die in the catalog. Shader dots use a labeled, card-specific ratio so both early and modern GPUs remain legible.
Catalog context
Within its series, the Radeon R9 390X (Grenada XT) ranks 5th of 54 for FP32 throughput and first of 104 for memory capacity. Its 275 W TDP is above the 75 W PCIe slot-power ceiling.
Source: Wikipedia, revision 1364362273 · catalog loaded 2026-08-16