GeForce 945M and Radeon HD 8770M - video card comparison
GeForce 945M
Radeon HD 8770M
Architecture
Maxwell (2014−2018)
GCN (2011−2017)
GPU code name
GM107
Mars
Market segment
Laptop
Laptop
Release date
March 2015
November 2012
Bus support
PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
-
Boost clock speed
1045 MHz
825 MHz
Core clock speed
928 MHz
775 MHz
Floating-point performance
953.9 gflops
633.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
950 million
Pipelines / CUDA cores
512
384
Power consumption (TDP)
75 Watt
-
Texture fill rate
40.80
19.80
Memory type
DDR3
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
2000 MHz
4500 MHz
Memory bandwidth
28.8 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_1)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.2.131
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-