GeForce 840M and Xbox One X GPU - video card comparison
GeForce 840M
Xbox One X GPU
Architecture
Maxwell (2014−2018)
GCN 2.0 (2013−2017)
GPU code name
N15S-GT
Scorpio
Market segment
Laptop
Desktop
Release date
March 2014
November 2017
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
IGP
Boost clock speed
1124 MHz
-
Core clock speed
1029 MHz
1172 MHz
Floating-point performance
863.2 gflops
6,001 gflops
Manufacturing process technology
28 nm
16 nm
Number of transistors
-
7,000 million
Pipelines / CUDA cores
384
2560
Power consumption (TDP)
33 Watt
150 Watt
Texture fill rate
17.98
187.5
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
12 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
2000 MHz
6800 MHz
Memory bandwidth
16.02 GB/s
326.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
N/A
Shader Model
5.1
6.0
Vulkan
1.1.126
1.1
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-