Radeon R9 M290X and Maxwell GPU Surface Book - video card comparison
Radeon R9 M290X
Maxwell GPU Surface Book
Architecture
GCN (2011−2017)
Maxwell (2014−2018)
GPU code name
Neptune
Surface Book
Market segment
Laptop
Laptop
Release date
January 2014
October 2015
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
None
-
Boost clock speed
900 MHz
993 MHz
Compute units
20
-
Core clock speed
850 MHz
954 MHz
Floating-point performance
2,304 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
-
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
100 Watt
-
Texture fill rate
72.00
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1200 MHz
5012 MHz
Memory bandwidth
153.6 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
-
Eyefinity
1
-
DirectX
DirectX® 11
12 (FL 11_0)
CUDA
-
+
Mantle
+
-
OpenCL
Not Listed
-
OpenGL
4.4
-
Shader Model
5.1
-
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
Optimus
-
+
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-