AMD Radeon RX 6950 XT vs AMD Radeon RX 550 Mobile
GPU · Specs Compare
Graphics Card
Release Date
May 2022
Jul 2017
Generation
Navi II
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
1860 MHz
1100 MHz
Boost Clock
2310 MHz
1287 MHz
Memory Clock
2250 MHz
1500 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
256bit
128bit
Bandwidth
576.0GB/s
96.00GB/s
Render Config
Compute Units
80
10
Shading Units
5120
640
TMUs
320
40
ROPs
128
16
RT Cores
80
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
512 KB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
295.7 GPixel/s
20.59 GPixel/s
Texture Rate
739.2 GTexel/s
51.48 GTexel/s
FP16 (half)
47.31 TFLOPS
1.647 TFLOPS
FP32 (float)
23.65 TFLOPS
1.647 TFLOPS
FP64 (double)
1478 GFLOPS
103.0 GFLOPS
Graphics Processor
GPU Name
Navi 21
Lexa
GPU Variant
Navi 21 KXTX(215-121000289)
Lexa PRO(215-0904018)
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
26.8 billion
2.2 billion
Die Size
520 mm²
103 mm²
Board Design
TDP
335W
50W
Suggested PSU
700 W
—
Outputs
1x HDMI 2.12x DisplayPort 1.4a
No outputs
Power Connectors
2x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2
Shader Model
6.5
6.4
▲ Specs Compare
Data sourced from official specifications and benchmark tests.