AMD Radeon 660M vs AMD Radeon R9 Nano
GPU Specs Compare
Graphics Card
Release Date
Jan 2022
Aug 2015
Generation
Rembrandt
Pirate Islands
Type
Integrated
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1500 MHz
-
Boost Clock
1900 MHz
-
Memory Clock
System Shared
500 MHz
Memory
Memory Size
System Shared
4GB
Memory Type
System Shared
HBM
Memory Bus
System Shared
4096bit
Bandwidth
System Dependent
512.0GB/s
Render Config
Compute Units
6
64
Shading Units
384
4096
TMUs
24
256
ROPs
16
64
RT Cores
6
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
2 MB
Theoretical Performance
Pixel Rate
30.40 GPixel/s
64.00 GPixel/s
Texture Rate
45.60 GTexel/s
256.0 GTexel/s
FP16 (half)
2.918 TFLOPS
8.192 TFLOPS
FP32 (float)
1459 GFLOPS
8.192 TFLOPS
FP64 (double)
91.20 GFLOPS
512.0 GFLOPS
Graphics Processor
GPU Name
Rembrandt
Fiji
Architecture
RDNA 2.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
6 nm
28 nm
Transistors
13.1 billion
8.9 billion
Die Size
210 mm²
596 mm²
GPU Variant
-
Fiji XT CA(215-0862120)
Board Design
TDP
15W
175W
Outputs
No outputs
1x HDMI 1.4a3x DisplayPort 1.2
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
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.5
6.3
📊 Benchmark
3DMark Time Spy
1,537
-
3DMark Time Spy Extreme
701
-