Architecture
AMD GCN 1.0 28nm
Most Powerful Variant
Tahiti XT2
Cores : TMUs : ROPs
2048 : 128 : 32
Typical Memory Size
3072 MB
Typical Memory Bus
384 -bit
Tahiti GPU
Overview
Manufacturer
AMD
Release Date
June 22nd, 2012
Graphics Processing Unit
Architecture
GCN 1.0
Fabrication Process
28 nm
Die Size
352 mm2
Transistors Count
4.3B
Stream Processors
2048
TMUs
128
ROPs
32
Clocks
Base Clock
1000 MHz
Memory Configuration
Memory Size
3072 MB
Memory Type
GDDR5
Memory Bus Width
384-bit
Memory Bandwidth
288.0 GB/s
Performance
Pixel Fillrate
33.6 GPixels/s
Texture Fillrate
134.4 GTexel/s
SPFP Performance
4.3 TFLOPS
Performance per W
17.2 GFLOPS/W
Performance per mm2
12.2 GFLOPS/mm2
Physical
Interface
PCI-Express 3.0 x16
Typical Thermal Design Power
250 W
CrossFire Support
4-way
API Support
DirectX
11.2
Vulkan
-
OpenGL
4.4
OpenCL
1.2
| Model | GPU Model | Unified Cores | Boost Clock | Memory Clock | Memory Config. | |
|---|---|---|---|---|---|---|
 | AMD Radeon HD 7990 | Tahiti XT2 | ||||
| | AMD Radeon HD 8990 | Tahiti XT2 | ||||
 | AMD Radeon Sky 900 | Tahiti PRO | - | |||
 | AMD Radeon HD 7970 GHz Edition | Tahiti XT2 | ||||
| | AMD Radeon HD 8970 | Tahiti XT2 | ||||
 | AMD Radeon HD 7970 | Tahiti XT | - | |||
 | AMD Radeon R9 280X | Tahiti XTL | ||||
 | AMD Radeon Sky 700 | Tahiti PRO | - | |||
 | AMD Radeon HD 7950 Boost | Tahiti PRO | ||||
| | AMD Radeon R9 280 | Tahiti PRO | ||||
 | AMD Radeon HD 8950 | Tahiti PRO | ||||
| | AMD Radeon HD 7950 | Tahiti PRO | - | |||
 | AMD Radeon HD 7870 XT | Tahiti LE |
