AMD Radeon 660M vs AMD Radeon RX 6800S
GPU · Specs Compare
Graphics Card
Release Date
Jan 2022
Jan 2022
Generation
Rembrandt
Mobility Radeon
Type
Integrated
Mobile
Bus Interface
PCIe 4.0 x8
PCIe 4.0 x8
Clock Speeds
Base Clock
1500 MHz
1800 MHz
Boost Clock
1900 MHz
2100 MHz
Memory Clock
System Shared
2000 MHz
Memory
Memory Size
System Shared
8GB
Memory Type
System Shared
GDDR6
Memory Bus
System Shared
128bit
Bandwidth
System Dependent
256.0GB/s
Render Config
Compute Units
6
32
Shading Units
384
2048
TMUs
24
128
ROPs
16
64
RT Cores
6
32
L1 Cache
128 KB per Array
128 KB per Array
L2 Cache
2 MB
2 MB
L3 Cache
—
32 MB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
134.4 GPixel/s
Texture Rate
45.60 GTexel/s
268.8 GTexel/s
FP16 (half)
2.918 TFLOPS
17.20 TFLOPS
FP32 (float)
1459 GFLOPS
8.602 TFLOPS
FP64 (double)
91.20 GFLOPS
537.6 GFLOPS
Graphics Processor
GPU Name
Rembrandt
Navi 23
Architecture
RDNA 2.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
6 nm
7 nm
Transistors
13.1 billion
11.06 billion
Die Size
210 mm²
237 mm²
Board Design
TDP
15W
100W
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.3
Shader Model
6.5
6.5
Benchmark
3DMark Time Spy
1,537
—
3DMark Time Spy Extreme
701
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.