Mobility Radeon HD 3870 X2 and GeForce 930M - video card comparison
Mobility Radeon HD 3870 X2
GeForce 930M
Architecture
RV6xx (2007−2010)
Maxwell (2014−2018)
GPU code name
M88-XT CF
N16S-GM-B/S, N16S-LP
Market segment
Laptop
Laptop
Release date
September 2008
March 2015
Bus support
-
PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
941 MHz
Core clock speed
660 MHz
928 MHz
Floating-point performance
2x 422.4 gflops
722.7 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
666 million
-
Pipelines / CUDA cores
640
384
Power consumption (TDP)
110 Watt
33 Watt
Texture fill rate
10.56
22.58
Memory type
GDDR3
DDR3
Maximum RAM amount
512 MB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
850 MHz
1800 MHz
Memory bandwidth
54.4 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
+
OpenCL
N/A
1.2
OpenGL
3.3
4.5
Shader Model
4.1
5.1
Vulkan
N/A
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+