Product Compare

AMD Radeon RX 580X Mobile vs AMD Radeon RX 6950 XT

GPU GPU
Graphics Card
Release Date Apr 2018 May 2022
Generation Mobility Radeon Navi II
Type Mobile Desktop
Bus Interface MXM-B (3.0) PCIe 4.0 x16
Clock Speeds
Base Clock 1000 MHz 1860 MHz
Boost Clock 1077 MHz 2310 MHz
Memory Clock 2000 MHz 2250 MHz
Memory
Memory Size 8GB 16GB
Memory Type GDDR5 GDDR6
Memory Bus 256bit 256bit
Bandwidth 256.0GB/s 576.0GB/s
Render Config
Compute Units 36 80
Shading Units 2304 5120
TMUs 144 320
ROPs 32 128
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 2 MB 4 MB
RT Cores 80
L3 Cache 128 MB
Theoretical Performance
Pixel Rate 34.46 GPixel/s 295.7 GPixel/s
Texture Rate 155.1 GTexel/s 739.2 GTexel/s
FP16 (half) 4.963 TFLOPS 47.31 TFLOPS
FP32 (float) 4.963 TFLOPS 23.65 TFLOPS
FP64 (double) 310.2 GFLOPS 1478 GFLOPS
Graphics Processor
GPU Name Polaris 20 Navi 21
GPU Variant Polaris 20M XT Navi 21 KXTX(215-121000289)
Architecture GCN 4.0 RDNA 2.0
Foundry GlobalFoundries TSMC
Process Size 14 nm 7 nm
Transistors 5.7 billion 26.8 billion
Die Size 232 mm² 520 mm²
Board Design
TDP 100W 335W
Outputs No outputs 1x HDMI 2.12x DisplayPort 1.4a
Power Connectors None 2x 8-pin
Suggested PSU 700 W
Graphics Features
DirectX 12 (12_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.1 2.1
Vulkan 1.2 1.3
Shader Model 6.4 6.5