GeForce GTX 660 OEM and Radeon RX Vega 3 - video card comparison
GeForce GTX 660 OEM
Radeon RX Vega 3
Architecture
Kepler (2012−2018)
Vega (2017−2021)
GPU code name
GK104
Vega Raven Ridge
Market segment
Desktop
Laptop
Release date
August 2012
January 2018
Interface
PCIe 3.0 x16
IGP
Supplementary power connectors
1x 6-pin
None
Boost clock speed
888 MHz
1200 MHz
Core clock speed
823 MHz
600 MHz
Floating-point performance
2,046 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
3,540 million
4,940 million
Pipelines / CUDA cores
1152
192
Power consumption (TDP)
130 Watt
15 Watt
Texture fill rate
85.25
12.13
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
256 Bit
System Shared
Memory clock speed
5600 MHz
System Shared
Memory bandwidth
179.2 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131