AMD Radeon HD 6850 X2 vs AMD Radeon Pro Duo
GPU · Specs Compare
Graphics Card
Release Date
Sep 2011
Apr 2016
Generation
Northern Islands
Radeon Pro
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1050 MHz
500 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
HBM
Memory Bus
256bit
4096bit
Bandwidth
134.4GB/s
512.0GB/s
Render Config
Compute Units
12
64
Shading Units
960
4096
TMUs
48
256
ROPs
32
64
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Theoretical Performance
Pixel Rate
25.60 GPixel/s
64.00 GPixel/s
Texture Rate
38.40 GTexel/s
256.0 GTexel/s
FP32 (float)
1.536 TFLOPS
8.192 TFLOPS
FP16 (half)
—
8.192 TFLOPS
FP64 (double)
—
512.0 GFLOPS
Graphics Processor
GPU Name
Barts
Capsaicin
GPU Variant
Barts PRO(215-0798006)
Capsaicin XT
Architecture
TeraScale 2
GCN 3.0
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
1.7 billion
8.9 billion
Die Size
255 mm²
596 mm²
Board Design
TDP
254W
350W
Suggested PSU
600 W
750 W
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
1x HDMI 1.4a3x DisplayPort 1.2
Power Connectors
2x 8-pin
3x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.0
Vulkan
N/A
1.2
Shader Model
5.0
6.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.