Radeon R9 285 and Radeon 660M - video card comparison
Passmark - benchmark score Radeon R9 285 vs Radeon 660M
Radeon R9 285
6880
Radeon 660M
6474
Radeon R9 285
Radeon 660M
Architecture
GCN 3.0 (2014−2017)
RDNA 2 (2020−2022)
GPU code name
Tonga
RDNA 2 Rembrandt
Market segment
Desktop
Laptop
Release date
September 2014
January 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
-
1900 MHz
Core clock speed
918 MHz
-
Floating-point performance
3,290 gflops
-
Manufacturing process technology
28 nm
6 nm
Number of transistors
5,000 million
13,100 million
Pipelines / CUDA cores
1792
384
Power consumption (TDP)
190 Watt
45 Watt
Texture fill rate
102.8
45.60
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
5.5 GB/s
System Shared
Memory bandwidth
176.0 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
No outputs
HDMI
+
-
DirectX
12 (12_0)
12 (12_1)
OpenCL
2.1
2.0
OpenGL
4.6
4.6
Shader Model
6.5
6.5
Vulkan
1.2.170
1.2