Radeon HD 6450A and GeForce 8800 GTS 640 - video card comparison
Radeon HD 6450A
GeForce 8800 GTS 640
Architecture
TeraScale 2 (2009−2015)
Tesla (2006−2010)
GPU code name
Caicos
G80
Market segment
Desktop
Desktop
Release date
April 2011
November 2006
Interface
MXM-A (3.0)
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
625 MHz
513 MHz
Floating-point performance
200 gflops
228.1 gflops
Manufacturing process technology
40 nm
90 nm
Number of transistors
370 million
681 million
Pipelines / CUDA cores
160
96
Power consumption (TDP)
25 Watt
143 Watt
Texture fill rate
5.000
24.62
Memory type
DDR3
GDDR3
Maximum RAM amount
512 MB
640 MB
Memory bus width
64 Bit
320 Bit
Memory clock speed
1066 MHz
1584 MHz
Memory bandwidth
8.528 GB/s
63.36 GB/s
Display Connectors
No outputs
2x DVI, 1x S-Video
DirectX
11.2 (11_0)
11.1 (10_0)
CUDA
-
+
OpenCL
1.2
1.1
OpenGL
4.4
3.3
Shader Model
5.0
4.0
Vulkan
N/A
N/A