GPUSPECINDEX

AMD · GCN 2 · 2015

Radeon R9 390 (Grenada Pro)

Radeon R9 390 (Grenada Pro): 8 GB GDDR5, 275 W, 2,560 Stream processors. Launched June 2015 at $329.

Memory
8 GB
Power
275 W
Bus width
512 bit
Memory8 GB1 of 104 in Radeon R9/R7/R5
Power275 W2 of 83 by higher draw in Radeon R9/R7/R5
Stream processors2,5608 of 69 in Radeon R9/R7/R5
Launch price$3299 of 33 in Radeon R9/R7/R5

Affiliate links — we may earn a commission.

Memory

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

Compute

Stream processors
2,560
TMUs
160
ROPs
64
FP32
5,120 GFLOPS
FP64
640 GFLOPS
Pixel fill rate
64 GP/s
Texture fill rate
160 GT/s

Board

TDP
275 W
Bus interface
PCIe 3.0 x4 x8 ×16
Form factor
desktop
Launch MSRP
329 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.

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 · 2,560 shadersDie area drawn to scale against the catalog maximum of 1,540 square millimeters. Each dot = 32 shaders.438 mm² die · 2,560 shadersEach dot = 32 shadersDashed frame = largest catalog die (1,540 mm²)

Within its series, the Radeon R9 390 (Grenada Pro) ranks 8th 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