GeForce GTX 660 Rev. 2 and Radeon RX Vega 64 Liquid Cooling - video card comparison
GeForce GTX 660 Rev. 2
Radeon RX Vega 64 Liquid Cooling
Architecture
Kepler (2012−2018)
GCN 5.0 (2017−2020)
GPU code name
GK104
Vega 10
Market segment
Desktop
Desktop
Release date
September 2014
August 2017
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
2x 8-pin
Boost clock speed
1032 MHz
1668 MHz
Core clock speed
980 MHz
1408 MHz
Floating-point performance
1,981 gflops
14,336 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
3,540 million
12,500 million
Pipelines / CUDA cores
960
4096
Power consumption (TDP)
140 Watt
345 Watt
Texture fill rate
82.56
427.0
Memory type
GDDR5
HBM2
Maximum RAM amount
2 GB
8 GB
Memory bus width
192 Bit
2048 Bit
Memory clock speed
6008 MHz
1890 MHz
Memory bandwidth
144.2 GB/s
483.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI, 3x DisplayPort
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
1.1.125