Architecture
AMD VLIW5 TeraScale 2 40nm
Most Powerful Variant
Barts XT
Cores : TMUs : ROPs
1120 : 56 : 32
Typical Memory Size
1024 MB
Typical Memory Bus
256 -bit
Barts GPU
Overview
Manufacturer
AMD
Release Date
October 21st, 2010
Graphics Processing Unit
Architecture
VLIW5 TeraScale 2
Fabrication Process
40 nm
Die Size
255 mm2
Transistors Count
1.7B
Stream Cores
1120
TMUs
56
ROPs
32
Clocks
Base Clock
900 MHz
Memory Configuration
Memory Size
1024 MB
Memory Type
GDDR5
Memory Bus Width
256-bit
Memory Bandwidth
134.4 GB/s
Performance
Pixel Fillrate
28.8 GPixels/s
Texture Fillrate
50.4 GTexel/s
SPFP Performance
2 TFLOPS
Performance per W
13.4 GFLOPS/W
Performance per mm2
7.9 GFLOPS/mm2
Physical
Interface
PCI-Express 2.0 x16
Typical Thermal Design Power
151 W
CrossFire Support
4-way
API Support
DirectX
11.0
Vulkan
-
OpenGL
4.4
OpenCL
1.2
| Model | GPU Model | Unified Cores | Memory Clock | Memory Config. | |
|---|---|---|---|---|---|
 | AMD Radeon HD 6870 | Barts XT | |||
 | AMD Radeon HD 6850 | Barts PRO | |||
 | AMD Radeon HD 6790 | Barts LE |
