AMD Radeon 550X Mobile vs AMD Radeon HD 6990
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
Mar 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
1250 MHz
Memory
Memory Size
4GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
64bit
256bit
Bandwidth
48.00GB/s
160.0GB/s
Render Config
Compute Units
10
24
Shading Units
640
1536
TMUs
40
96
ROPs
16
32
L1 Cache
16 KB (per CU)
8 KB (per CU)
L2 Cache
256 KB
512 KB
Theoretical Performance
Pixel Rate
20.59 GPixel/s
26.56 GPixel/s
Texture Rate
51.48 GTexel/s
79.68 GTexel/s
FP16 (half)
1.647 TFLOPS
-
FP32 (float)
1.647 TFLOPS
2.550 TFLOPS
FP64 (double)
103.0 GFLOPS
637.4 GFLOPS
Graphics Processor
GPU Name
Polaris 23
Antilles
GPU Variant
Polaris 23 MXT
Antilles XT(215-0807027)
Architecture
GCN 4.0
TeraScale 3
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
40 nm
Transistors
2.2 billion
2.64 billion
Die Size
103 mm²
389 mm²
Board Design
TDP
50W
375W
Outputs
No outputs
1x DVI4x mini-DisplayPort 1.2
Power Connectors
None
2x 8-pin
Suggested PSU
-
750 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