Radeon HD 7490M and GeForce GT 555M 2 GB - video card comparison
Radeon HD 7490M
GeForce GT 555M 2 GB
Architecture
Terascale 2 (2009−2015)
Fermi 2.0 (2010−2014)
GPU code name
Seymour XTX
GF116
Market segment
Laptop
Desktop
Release date
December 2011
March 2012
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
800 MHz
675 MHz
Floating-point performance
256.0 gflops
-
Manufacturing process technology
40 nm
40 nm
Number of transistors
370 million
1,170 million
Pipelines / CUDA cores
160
144
Power consumption (TDP)
9 Watt
35 Watt
Texture fill rate
6.400
16.20
Memory type
GDDR5
DDR3
Maximum RAM amount
512 MB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
3800 MHz
1800 MBps
Memory bandwidth
30.4 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
N/A