Radeon RX Vega 56 and GeForce GTX 660 Ti - video card comparison
Passmark - benchmark score Radeon RX Vega 56 vs GeForce GTX 660 Ti
Radeon RX Vega 56
13659
GeForce GTX 660 Ti
4547
Radeon RX Vega 56
GeForce GTX 660 Ti
Architecture
Vega (2017−2021)
Kepler (2012−2018)
GPU code name
Vega
GK104
Market segment
Desktop
Desktop
Release date
August 2017
August 2012
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2x 8-pin
Two 6-pin
SLI options
-
+
Boost clock speed
1474 MHz
980 MHz
Core clock speed
1138 MHz
915 MHz
CUDA cores
-
1344
Floating-point performance
10,566 gflops
2,459.5 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
12,500 million
3,540 million
Pipelines / CUDA cores
3584
1344
Power consumption (TDP)
210 Watt
150 Watt
Texture fill rate
329.5
102.5 billion/sec
Memory type
HBM2
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
409.6 Bit
192-bit GDDR5
Memory clock speed
800 MHz
6.0 GB/s
Memory bandwidth
409.6 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (12_1)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.2
OpenGL
4.6
4.3
Shader Model
6.4
5.1
Vulkan
1.1.125
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+