AMD Tonga Graphics Processing Unit (GPU)

Overview
Manufacturer
AMD
Series
Radeon 200
Release Date
Oct 2014
Board Model
AMD C765
Graphics Processing Unit
GPU Model
Tonga XT (Tonga)
Architecture
Graphics Core Next 3.0
Fabrication Process
28 nm
Die Size
359 mm2
Transistors Count
5B
Transistors Density
13.9M TRAN/mm2
Stream Processors
2048
TMUs
128
ROPs
32
Clocks
Base Clock
1002 MHz
Memory Clock
1375 MHz
Effective Memory Clock
5500 Mbps
Memory Configuration
Memory Size
3072 MB
Memory Type
GDDR5
Memory Bus Width
384-bit
Memory Bandwidth
264 GB/s
Physical
Interface
PCI-Express 3.0 x16
Power Connectors
-
Display Outputs
DVI-I DualLink
2 ×
DisplayPort
1 ×
HDMI
1 ×
API Support
DirectX
11.2
Mantle
1.0
Vulkan
1.0
OpenGL
4.4
OpenCL
2.0
Shader Model
5.0

Performance
Pixel Fillrate
32.1 GPixels/s
Texture Fillrate
128.3 GTexel/s
SPFP Performance
4.1 TFLOPS
Performance per mm2
11.4 GFLOPS/mm2


 ModelGPUClocksMemory
AMD Radeon R9 285X Tonga XT 1002 / 1375 MHz 3 GB GDDR5
AMD Radeon R9 380X Antigua XT 970 / 1425 MHz 4 GB GDDR5
AMD Radeon R9 M390X Amethyst XT 723 / 1250 MHz 4 GB GDDR5
AMD Radeon R9 M395 Amethyst XT 834 / 1365 MHz 4 GB GDDR5
AMD Radeon R9 M395X Amethyst XT 723 / 1250 MHz 4 GB GDDR5
AMD Radeon R9 M485X Tonga 1000 / 1250 MHz 8 GB GDDR5
AMD Radeon R9 285 Tonga PRO 918 / 1375 MHz 2 GB GDDR5
AMD Radeon R9 380 Antigua PRO 970 / 1375 MHz 2 GB GDDR5