GeForce 940MX and Radeon HD 3870 - video card comparison
Passmark - benchmark score GeForce 940MX vs Radeon HD 3870
GeForce 940MX
1561
Radeon HD 3870
572
GeForce 940MX
Radeon HD 3870
Architecture
Maxwell (2014−2018)
TeraScale (2005−2013)
GPU code name
N16S-GTR-B/S
RV670
Market segment
Laptop
Desktop
Release date
March 2016
November 2007
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
1242 MHz
-
Core clock speed
1122 MHz
777 MHz
Floating-point performance
762.6 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,870 million
666 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
23 Watt
106 Watt
Texture fill rate
23.83
12.43
Memory type
DDR3, GDDR5
GDDR4
Maximum RAM amount
4 GB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
4000 MHz
2252 MHz
Memory bandwidth
40.1 GB/s
72.06 GB/s
Shared memory
-
-
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
12 (11_0)
10.1 (10_1)
CUDA
+
-
OpenCL
1.2
N/A
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
1.1
N/A
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-