AMD Radeon 550X Mobile vs AMD Radeon R9 280X
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Oct 2013
Generation
Mobility Radeon
Volcanic Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1100 MHz
850 MHz
Boost Clock
1287 MHz
1000 MHz
Memory Clock
1500 MHz
1500 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
64bit
384bit
Bandwidth
48.00GB/s
288.0GB/s
Render Config
Compute Units
10
32
Shading Units
640
2048
TMUs
40
128
ROPs
16
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
256 KB
768 KB
Theoretical Performance
Pixel Rate
20.59 GPixel/s
32.00 GPixel/s
Texture Rate
51.48 GTexel/s
128.0 GTexel/s
FP16 (half)
1.647 TFLOPS
—
FP32 (float)
1.647 TFLOPS
4.096 TFLOPS
FP64 (double)
103.0 GFLOPS
1024 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Tahiti
GPU Variant
Polaris 23 MXT
Tahiti XTL(215-0821065)
Architecture
GCN 4.0
GCN 1.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
2.2 billion
4.313 billion
Die Size
103 mm²
352 mm²
Board Design
TDP
50W
250W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Suggested PSU
—
600 W
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.1
1.2
Vulkan
1.2
1.2
Shader Model
6.4
5.1
▲ Specs Compare
Data sourced from official specifications and benchmark tests.