Radeon RX 540 and GeForce GT 640M - video card comparison
Passmark - benchmark score Radeon RX 540 vs GeForce GT 640M
Radeon RX 540
2872
GeForce GT 640M
943
Radeon RX 540
GeForce GT 640M
Architecture
Polaris (2016−2019)
Kepler (2012−2018)
GPU code name
Polaris 12
N13P-GS
Market segment
Laptop
Laptop
Release date
March 2017
March 2012
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
1219 MHz
645 MHz
Core clock speed
-
Up to 625 MHz
CUDA cores
-
384
Floating-point performance
1,248 gflops
480.0 gflops
Manufacturing process technology
14 nm
28 nm
Number of transistors
1,500 million
1,270 million
Pipelines / CUDA cores
512
384
Power consumption (TDP)
75 Watt
32 Watt
Texture fill rate
39.01
Up to 20.0 billion/sec
Memory type
GDDR5
DDR3\GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128bit
Memory clock speed
6000 MHz
1800 - 4000 MHz
Memory bandwidth
96 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12.0
12 API
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.0
5.1
Vulkan
-
1.1.126
3D Blu-Ray
-
+
FreeSync
+
-
Optimus
-
+