GeForce GT 640 and Radeon HD 7470M - video card comparison
Passmark - benchmark score GeForce GT 640 vs Radeon HD 7470M
GeForce GT 640
1209
Radeon HD 7470M
419
GeForce GT 640
Radeon HD 7470M
Architecture
Kepler (2012−2018)
Terascale 2 (2009−2015)
GPU code name
GK107
Seymour XT / XTX
Market segment
Desktop
Laptop
Release date
June 2012
December 2011
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
-
800 MHz
Core clock speed
902 MHz
750 / 800 MHz
Floating-point performance
692.7 gflops
240.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
370 million
Pipelines / CUDA cores
384
160
Power consumption (TDP)
65 Watt
7 Watt
Texture fill rate
28.86
6.400
Memory type
DDR3
DDR3/GDDR5
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
3200 / 1800 MHz
Memory bandwidth
28.51 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A