AMD Tahiti Graphics Processing Unit (GPU)

Specs based on AMD Radeon HD 7970 GHz Edition
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
Transistors Density
12.3M TRAN/mm2
Stream Processors
2048
Compute Units
128
Shader Engines
32
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




 ModelGPU ModelUnified CoresBoost ClockMemory ClockMemory Config.
AMD Radeon HD 7990 Tahiti XT2
 
4096
 
1000 MHz
 
6 Gbps
 
12 GB GD5 384b
AMD Radeon HD 8990 Tahiti XT2
 
4096
 
1000 MHz
 
6 Gbps
 
12 GB GD5 384b
AMD Radeon Sky 900 Tahiti PRO
 
3584
-
 
5 Gbps
 
12 GB GD5 384b
AMD Radeon HD 7970 GHz Edition Tahiti XT2
 
2048
 
1050 MHz
 
6 Gbps
 
3 GB GD5 384b
AMD Radeon HD 8970 Tahiti XT2
 
2048
 
1050 MHz
 
6 Gbps
 
3 GB GD5 384b
AMD Radeon HD 7970 Tahiti XT
 
2048
-
 
6 Gbps
 
3 GB GD5 384b
AMD Radeon R9 280X Tahiti XTL
 
2048
 
1000 MHz
 
6 Gbps
 
3 GB GD5 384b
AMD Radeon Sky 700 Tahiti PRO
 
1792
-
 
5 Gbps
 
6 GB GD5 384b
AMD Radeon HD 7950 Boost Tahiti PRO
 
1792
 
925 MHz
 
5 Gbps
 
3 GB GD5 384b
AMD Radeon R9 280 Tahiti PRO
 
1792
 
933 MHz
 
6 Gbps
 
3 GB GD5 384b
AMD Radeon HD 8950 Tahiti PRO
 
1792
 
925 MHz
 
5 Gbps
 
3 GB GD5 384b
AMD Radeon HD 7950 Tahiti PRO
 
1792
-
 
5 Gbps
 
3 GB GD5 384b
AMD Radeon HD 7870 XT Tahiti LE
 
1536
 
975 MHz
 
6 Gbps
 
2 GB GD5 256b