AMD Radeon RX 550 Mobile vs AMD Radeon HD 6870 X2
GPU · Specs Compare
Graphics Card
Release Date
Jul 2017
Jul 2011
Generation
Mobility Radeon
Northern Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 2.0 x16
Clock Speeds
Base Clock
1100 MHz
—
Boost Clock
1287 MHz
—
Memory Clock
1500 MHz
1050 MHz
Memory
Memory Size
2GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
256bit
Bandwidth
96.00GB/s
134.4GB/s
Render Config
Compute Units
10
14
Shading Units
640
1120
TMUs
40
56
ROPs
16
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
20.59 GPixel/s
28.80 GPixel/s
Texture Rate
51.48 GTexel/s
50.40 GTexel/s
FP16 (half)
1.647 TFLOPS
—
FP32 (float)
1.647 TFLOPS
2.016 TFLOPS
FP64 (double)
103.0 GFLOPS
—
Graphics Processor
GPU Name
Lexa
Barts
GPU Variant
Lexa PRO(215-0904018)
Barts XT(215-0798000)
Architecture
GCN 4.0
TeraScale 2
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
40 nm
Transistors
2.2 billion
1.7 billion
Die Size
103 mm²
255 mm²
Board Design
TDP
50W
300W
Outputs
No outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
None
—
Suggested PSU
—
700 W
Graphics Features
DirectX
12 (12_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.2
N/A
Shader Model
6.4
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.