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AMD · GCN 2 · 2015

Radeon R9 390X (Grenada XT)

Memory8 GB1 of 104 in Radeon R9/R7/R5
Power275 W2 of 83 by higher draw in Radeon R9/R7/R5
Shaders2,8164 of 69 in Radeon R9/R7/R5
Launch price$4297 of 33 in Radeon R9/R7/R5

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.

438 mm² die · 2,816 shadersDie area drawn to scale against the catalog maximum of 1,540 square millimeters. Each dot = 32 shaders.438 mm² die · 2,816 shadersEach dot = 32 shadersDashed frame = largest catalog die (1,540 mm²)

Specifications

Memory

Capacity
8 GB
Type
GDDR5
Bus width
512 bit
Bandwidth
384 GB/s

Compute

Shaders
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.

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.

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Source: Wikipedia, revision 1364362273 · catalog loaded 2026-08-16