Product Compare

AMD Radeon RX 455 OEM vs AMD Radeon Pro W6800X

GPU GPU
Graphics Card
Release Date Jun 2016 Aug 2021
Generation Arctic Islands Radeon Pro Mac
Type Desktop Desktop
Bus Interface PCIe 3.0 x16 Apple MPX
Clock Speeds
Memory Clock 1625 MHz 2000 MHz
Base Clock 1800 MHz
Boost Clock 2087 MHz
Memory
Memory Size 2GB 32GB
Memory Type GDDR5 GDDR6
Memory Bus 128bit 256bit
Bandwidth 104.0GB/s 512.0GB/s
Render Config
Compute Units 12 60
Shading Units 768 3840
TMUs 48 240
ROPs 16 96
L1 Cache 16 KB (per CU) 128 KB per Array
L2 Cache 256 KB 4 MB
RT Cores 60
L3 Cache 128 MB
Theoretical Performance
Pixel Rate 16.80 GPixel/s 200.4 GPixel/s
Texture Rate 50.40 GTexel/s 500.9 GTexel/s
FP32 (float) 1.613 TFLOPS 16.03 TFLOPS
FP64 (double) 100.8 GFLOPS 1002 GFLOPS
FP16 (half) 32.06 TFLOPS
Graphics Processor
GPU Name Tobago Navi 21
GPU Variant Tobago PRO(215-0875010) Navi 21 Pro-XLA
Architecture GCN 2.0 RDNA 2.0
Foundry TSMC TSMC
Process Size 28 nm 7 nm
Transistors 2.08 billion 26.8 billion
Die Size 160 mm² 520 mm²
Board Design
TDP 100W 200W
Suggested PSU 300 W 550 W
Outputs 1x DVI1x HDMI 1.4a1x DisplayPort 1.2 1x HDMI 2.14x Thunderbolt
Power Connectors 1x 6-pin Apple MPX
Graphics Features
DirectX 12 (12_0) 12 Ultimate (12_2)
OpenGL 4.6 4.6
OpenCL 2.0 2.1
Vulkan 1.2 1.3
Shader Model 6.3 6.7