Maxwell GPU Surface Book and Mobility Radeon HD 3870 - video card comparison
Maxwell GPU Surface Book
Mobility Radeon HD 3870
Architecture
Maxwell (2014−2018)
RV6xx (2007−2010)
GPU code name
Surface Book
M88-XT
Market segment
Laptop
Laptop
Release date
October 2015
March 2008
Interface
-
PCIe 2.0 x16
Boost clock speed
993 MHz
-
Core clock speed
954 MHz
660 MHz
Floating-point performance
-
422.4 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
-
666 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
-
55 Watt
Texture fill rate
-
10.56
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
5012 MHz
850 MHz
Memory bandwidth
-
54.4 GB/s
Shared memory
-
-
Display Connectors
-
No outputs
DirectX
12 (FL 11_0)
10.1 (10_1)
CUDA
+
-
OpenCL
-
N/A
OpenGL
-
3.3
Shader Model
-
4.1
Vulkan
-
N/A
Optimus
+
-