Radeon HD 8770M and GeForce GT 445M - video card comparison
Radeon HD 8770M
GeForce GT 445M
Architecture
GCN (2011−2017)
Fermi (2010−2014)
GPU code name
Mars
N11E-GE
Market segment
Laptop
Laptop
Release date
November 2012
September 2010
Interface
PCIe 3.0 x8
PCIe 2.0 x16
SLI options
-
+
Boost clock speed
825 MHz
-
Core clock speed
775 MHz
590 MHz
CUDA cores
-
144
Floating-point performance
633.6 gflops
339.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
1,170 million
Pipelines / CUDA cores
384
144
Power consumption (TDP)
-
35 Watt
Texture fill rate
19.80
10.6 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
3 GB
Memory bus width
128 Bit
192 Bit
Memory clock speed
4500 MHz
1250 MHz
Memory bandwidth
72 GB/s
60.0 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_1)
12 API
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
1.2.131
N/A