Radeon HD 4770 and GeForce GTX 850A - video card comparison
Passmark - benchmark score Radeon HD 4770 vs GeForce GTX 850A
Radeon HD 4770
935
GeForce GTX 850A
1080
Radeon HD 4770
GeForce GTX 850A
Architecture
TeraScale (2005−2013)
Maxwell (2014−2018)
GPU code name
RV740
GM107
Market segment
Desktop
Desktop
Release date
April 2009
March 2014
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
936 MHz
Core clock speed
750 MHz
902 MHz
Floating-point performance
960.0 gflops
1,198 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
826 million
1,870 million
Pipelines / CUDA cores
640
640
Power consumption (TDP)
80 Watt
45 Watt
Texture fill rate
24.00
37.44
Memory type
GDDR5
DDR3
Maximum RAM amount
512 MB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
3200 MHz
1800 MHz
Memory bandwidth
51.2 GB/s
28.8 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
5.0
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
1.1.126