Radeon R5 Graphics and GeForce GT 640M LE - video card comparison
Radeon R5 Graphics
GeForce GT 640M LE
Architecture
GCN 2.0 (2013−2017)
Fermi / Kepler (2012)
GPU code name
Spectre SL
N13P-LP
Market segment
Desktop
Laptop
Release date
September 2014
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
IGP
PCIe 2.0 x16
Boost clock speed
720 MHz
-
Core clock speed
497 MHz
Up to 500 MHz
CUDA cores
-
Up to 384
Floating-point performance
388.1 gflops
384.0 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,410 million
585 million
Pipelines / CUDA cores
256
384
Power consumption (TDP)
15 Watt
20 Watt
Texture fill rate
7.952
Up to 16.0 billion/sec
Memory type
System Shared
DDR3\DDR5
Maximum RAM amount
System Shared
2 GB
Memory bus width
System Shared
128bit
Memory clock speed
System Shared
1800 - 4000 MHz
Memory bandwidth
-
Up to 28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 (12_0)
12 API
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.5
Shader Model
6.0
5.1
Vulkan
1.2.131
N/A
3D Blu-Ray
-
+
Optimus
-
+