Maxwell GPU Surface Book and Radeon HD 6850M - video card comparison
Maxwell GPU Surface Book
Radeon HD 6850M
Architecture
Maxwell (2014−2018)
Terascale 2 (2009−2015)
GPU code name
Surface Book
Granville Pro/LP
Market segment
Laptop
Laptop
Release date
October 2015
January 2011
Interface
-
PCIe 2.0 x16
Boost clock speed
993 MHz
-
Core clock speed
954 MHz
575 / 675 MHz
Floating-point performance
-
1,080.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
1,040 million
Pipelines / CUDA cores
384
800
Power consumption (TDP)
-
50 Watt
Texture fill rate
-
27.00
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
1 GB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
5012 MHz
800 MHz
Memory bandwidth
-
25.6 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
12 (FL 11_0)
11.2 (11_0)
CUDA
+
-
OpenCL
-
1.2
OpenGL
-
4.4
Shader Model
-
5.0
Vulkan
-
N/A
Optimus
+
-