GeForce GTX 660M and Radeon Vega 8 Efficient - video card comparison
GeForce GTX 660M
Radeon Vega 8 Efficient
Architecture
Kepler (2012−2018)
GCN 5.0 (2017−2020)
GPU code name
N13E-GE
Raven
Market segment
Laptop
Desktop
Release date
March 2012
April 2018
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
MXM-B (3.0)
IGP
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
950 MHz
1100 MHz
Core clock speed
835 MHz
300 MHz
CUDA cores
384
-
Floating-point performance
729.6 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
4,940 million
Pipelines / CUDA cores
384
512
Power consumption (TDP)
50 Watt
35 Watt
Texture fill rate
30.4 billion/sec
35.20
Memory type
GDDR5
System Shared
Maximum RAM amount
2 GB
System Shared
Memory bus width
128bit
System Shared
Memory clock speed
2000 MHz
System Shared
Memory bandwidth
64.0 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_1)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131
Optimus
+
-