GeForce GTX 950M and Radeon RX 580G - video card comparison
GeForce GTX 950M
Radeon RX 580G
Architecture
Maxwell (2014−2018)
GCN 4.0 (2016−2020)
GPU code name
N16P-GT
Polaris 20
Market segment
Laptop
Desktop
Release date
March 2015
October 2018
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x16
Supplementary power connectors
-
1x 8-pin
SLI options
+
-
Boost clock speed
1124 MHz
1330 MHz
Core clock speed
914 MHz
1257 MHz
CUDA cores
640
-
Floating-point performance
1,439 gflops
-
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,870 million
5,700 million
Pipelines / CUDA cores
640
2304
Power consumption (TDP)
75 Watt
185 Watt
Texture fill rate
44.96
191.5
Memory type
DDR3 or GDDR5
GDDR5
Maximum RAM amount
4 GB
8 GB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1000 or 2500 MHz
8000 MHz
Memory bandwidth
32 or 80 GB/s
256.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI, 3x DisplayPort
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
DirectX
12 (11_0)
12 (12_0)
CUDA
+
-
OpenCL
1.2
2.0
OpenGL
4.5
4.6
Shader Model
5.1
6.4
Vulkan
1.1.126
1.2.131
Ansel
+
-
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-