AMD Radeon R9 280X vs AMD Radeon R9 380X

Table of Contents

Graphics Processor

GPU model Tahiti Antigua
GPU variant Tahiti XTL (215-0821065) Antigua XT (215-0877016)
Architecture GCN 1.0 GCN 3.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 4,313 million 5,000 million
Die size 352 mm² 366 mm²

Graphics Card

Release date Oct 8th, 2013 Nov 19th, 2015
Generation Volcanic Islands Pirate Islands
Production End-of-life End-of-life
Launch price 299 USD 229 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 105 in our database 36 in our database
Predecessor Sea Islands Volcanic Islands
Successor Pirate Islands Arctic Islands

Clocks

Base clock 850 MHz
Boost clock 1000 MHz
Memory clock 1500 MHz 6 Gbps effective 1425 MHz 5.7 Gbps effective
GPU clock 970 MHz

Memory Configuration

Memory size 3 GB 4 GB
Memory type GDDR5 GDDR5
Memory bus width 384 bit 256 bit
Bandwidth 288.0 GB/s 182.4 GB/s

Render Configuration

Shading units 2048 2048
TMUs 128 128
ROPs 32 32
Compute units 32 32
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 768 KB 512 KB

Performance

Pixel rate 32.00 GPixel/s 31.04 GPixel/s
Texture rate 128.0 GTexel/s 124.2 GTexel/s
FP32 (float) performance 4.096 TFLOPS 3.973 TFLOPS
FP64 (double) performance 1,024 GFLOPS (1:4) 248.3 GFLOPS (1:16)
FP16 (half) performance 3.973 TFLOPS (1:1)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 275 mm 10.8 inches 221 mm 8.7 inches
Width 109 mm 4.3 inches 111 mm 4.4 inches
Height 36 mm 1.4 inches
TDP 250 W 190 W
Suggested PSU 600 W 450 W
Outputs 2x DVI1x HDMI1x DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 1x 6-pin + 1x 8-pin 2x 6-pin
Board number C386 C766, C784

API Support & Features

DirectX 12 (11_1) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 1.2 2.0
Vulkan 1.2 1.2
Shader model 5.1 6.3

Other Features

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