AMD Radeon RX 6600S vs AMD Radeon Instinct MI6
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
1120 MHz
Boost Clock
2000 MHz
1233 MHz
Memory Clock
1750 MHz
1750 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
224.0GB/s
224.0GB/s
Render Config
Compute Units
28
36
Shading Units
1792
2304
TMUs
112
144
ROPs
64
32
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
39.46 GPixel/s
Texture Rate
224.0 GTexel/s
177.6 GTexel/s
FP16 (half)
14.34 TFLOPS
5.682 TFLOPS
FP32 (float)
7.168 TFLOPS
5.682 TFLOPS
FP64 (double)
448.0 GFLOPS
355.1 GFLOPS
Graphics Processor
GPU Name
Navi 23
Ellesmere
Architecture
RDNA 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
7 nm
14 nm
Transistors
11.06 billion
5.7 billion
Die Size
237 mm²
232 mm²
GPU Variant
—
Ellesmere XT
Board Design
TDP
80W
150W
Outputs
No outputs
No outputs
Power Connectors
None
1x 6-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
Shader Model
6.5
6.4
Benchmark
3DMark Time Spy
7,700
—
3DMark Time Spy Extreme
3,389
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.