AMD Radeon R9 380 vs AMD Radeon R9 390X

Table of Contents

Graphics Processor

GPU model Antigua Grenada
GPU variant Antigua PRO (215-0877000) Grenada XT (215-0880004)
Architecture GCN 3.0 GCN 2.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 5,000 million 6,200 million
Die size 366 mm² 438 mm²

Graphics Card

Release date Jun 18th, 2015 Jun 18th, 2015
Generation Pirate Islands Pirate Islands
Production End-of-life End-of-life
Launch price 199 USD 429 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 39 in our database 60 in our database
Predecessor Volcanic Islands Volcanic Islands
Successor Arctic Islands Arctic Islands

Clocks

GPU clock 970 MHz 1050 MHz
Memory clock 1375 MHz 5.5 Gbps effective 1500 MHz 6 Gbps effective

Memory Configuration

Memory size 2 GB 8 GB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 512 bit
Bandwidth 176.0 GB/s 384.0 GB/s

Render Configuration

Shading units 1792 2816
TMUs 112 176
ROPs 32 64
Compute units 28 44
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 512 KB 1024 KB

Performance

Pixel rate 31.04 GPixel/s 67.20 GPixel/s
Texture rate 108.6 GTexel/s 184.8 GTexel/s
FP16 (half) performance 3.476 TFLOPS (1:1)
FP32 (float) performance 3.476 TFLOPS 5.914 TFLOPS
FP64 (double) performance 217.3 GFLOPS (1:16) 739.2 GFLOPS (1:8)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 221 mm 8.7 inches 275 mm 10.8 inches
Width 111 mm 4.4 inches 109 mm 4.3 inches
TDP 190 W 275 W
Suggested PSU 450 W 600 W
Outputs 2x DVI1x HDMI1x DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 2x 6-pin 1x 6-pin + 1x 8-pin
Board number C766 C671, C679-37
Height 36 mm 1.4 inches

API Support & Features

DirectX 12 (12_0) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2 1.2
Shader model 6.3 6.3

Other Features

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