GeForce GT 640M and Radeon RX 580 2048SP - video card comparison
Passmark - benchmark score GeForce GT 640M vs Radeon RX 580 2048SP
GeForce GT 640M
946
Radeon RX 580 2048SP
7929
GeForce GT 640M
Radeon RX 580 2048SP
Architecture
Kepler (2012−2018)
GCN 4.0 (2016−2020)
GPU code name
N13P-GS
Polaris 20
Market segment
Laptop
Desktop
Release date
March 2012
October 2018
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
Boost clock speed
645 MHz
1284 MHz
Core clock speed
Up to 625 MHz
1168 MHz
CUDA cores
384
-
Floating-point performance
480.0 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,270 million
5,700 million
Pipelines / CUDA cores
384
2048
Power consumption (TDP)
32 Watt
150 Watt
Texture fill rate
Up to 20.0 billion/sec
164.4
Memory type
DDR3\GDDR5
GDDR5
Maximum RAM amount
2 GB
8 GB
Memory bus width
128bit
256 Bit
Memory clock speed
1800 - 4000 MHz
7000 MHz
Memory bandwidth
Up to 64.0 GB/s
224.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 3x DisplayPort
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_0)
CUDA
+
-
OpenCL
1.1
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131
3D Blu-Ray
+
-
Optimus
+
-