AMD Radeon Pro W6900X vs AMD Radeon Instinct MI8
GPU · Specs Compare
Graphics Card
Release Date
Aug 2021
Dec 2016
Generation
Radeon Pro Mac
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1825 MHz
—
Boost Clock
2150 MHz
—
Memory Clock
2000 MHz
500 MHz
Memory
Memory Size
32GB
4GB
Memory Type
GDDR6
HBM
Memory Bus
256bit
4096bit
Bandwidth
512.0GB/s
512.0GB/s
Render Config
Compute Units
80
64
Shading Units
5120
4096
TMUs
320
256
ROPs
128
64
RT Cores
80
—
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
4 MB
2 MB
L3 Cache
128 MB
—
Theoretical Performance
Pixel Rate
275.2 GPixel/s
64.00 GPixel/s
Texture Rate
688.0 GTexel/s
256.0 GTexel/s
FP16 (half)
44.03 TFLOPS
8.192 TFLOPS
FP32 (float)
22.02 TFLOPS
8.192 TFLOPS
FP64 (double)
1376 GFLOPS
512.0 GFLOPS
Graphics Processor
GPU Name
Navi 21
Fiji
GPU Variant
Navi 21 Pro-XTA
Fiji XT CA(215-0862120)
Architecture
RDNA 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
26.8 billion
8.9 billion
Die Size
520 mm²
596 mm²
Board Design
TDP
300W
175W
Suggested PSU
700 W
450 W
Outputs
1x HDMI 2.14x Thunderbolt
No outputs
Power Connectors
None
1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.1
Vulkan
1.3
1.2.170
Shader Model
6.5
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.