Radeon HD 7870M and GeForce 940MX - video card comparison
Passmark - benchmark score Radeon HD 7870M vs GeForce 940MX
Radeon HD 7870M
1552
GeForce 940MX
1561
Radeon HD 7870M
GeForce 940MX
Architecture
GCN (2011−2017)
Maxwell (2014−2018)
GPU code name
Heathrow XT
N16S-GTR-B/S
Market segment
Laptop
Laptop
Release date
April 2012
March 2016
Bus support
-
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
Boost clock speed
-
1242 MHz
Core clock speed
800 MHz
1122 MHz
Floating-point performance
1,024 gflops
762.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
1,870 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
45 Watt
23 Watt
Texture fill rate
32.00
23.83
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
4000 MHz
4000 MHz
Memory bandwidth
64 GB/s
40.1 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 (11_0)
CUDA
-
+
OpenCL
1.2
1.2
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.2.131
1.1
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+