AMD Radeon HD 6850 X2 vs AMD Radeon RX 550 Mobile
GPU Specs Compare
Graphics Card
Release Date
Sep 2011
Jul 2017
Generation
Northern Islands
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x8
Clock Speeds
Memory Clock
1050 MHz
1500 MHz
Base Clock
-
1100 MHz
Boost Clock
-
1287 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
134.4GB/s
96.00GB/s
Render Config
Compute Units
12
10
Shading Units
960
640
TMUs
48
40
ROPs
32
16
L1 Cache
8 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
25.60 GPixel/s
20.59 GPixel/s
Texture Rate
38.40 GTexel/s
51.48 GTexel/s
FP32 (float)
1.536 TFLOPS
1.647 TFLOPS
FP16 (half)
-
1.647 TFLOPS
FP64 (double)
-
103.0 GFLOPS
Graphics Processor
GPU Name
Barts
Lexa
GPU Variant
Barts PRO(215-0798006)
Lexa PRO(215-0904018)
Architecture
TeraScale 2
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
40 nm
14 nm
Transistors
1.7 billion
2.2 billion
Die Size
255 mm²
103 mm²
Board Design
TDP
254W
50W
Suggested PSU
600 W
-
Outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
11.2 (11_0)
12 (12_0)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.2
Shader Model
5.0
6.4