AMD Radeon RX 6600S vs AMD Radeon Instinct MI8
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Dec 2016
Generation
Mobility Radeon
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1700 MHz
-
Boost Clock
2000 MHz
-
Memory Clock
1750 MHz
500 MHz
Memory
Memory Size
4GB
4GB
Memory Type
GDDR6
HBM
Memory Bus
128bit
4096bit
Bandwidth
224.0GB/s
512.0GB/s
Render Config
Compute Units
28
64
Shading Units
1792
4096
TMUs
112
256
ROPs
64
64
RT Cores
28
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
2 MB
L3 Cache
32 MB
-
Theoretical Performance
Pixel Rate
128.0 GPixel/s
64.00 GPixel/s
Texture Rate
224.0 GTexel/s
256.0 GTexel/s
FP16 (half)
14.34 TFLOPS
8.192 TFLOPS
FP32 (float)
7.168 TFLOPS
8.192 TFLOPS
FP64 (double)
448.0 GFLOPS
512.0 GFLOPS
Graphics Processor
GPU Name
Navi 23
Fiji
Architecture
RDNA 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
7 nm
28 nm
Transistors
11.06 billion
8.9 billion
Die Size
237 mm²
596 mm²
GPU Variant
-
Fiji XT CA(215-0862120)
Board Design
TDP
80W
175W
Outputs
No outputs
No outputs
Power Connectors
None
1x 8-pin
Suggested PSU
-
450 W
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
📊 Benchmark
3DMark Time Spy
7,700
-
3DMark Time Spy Extreme
3,389
-