Radeon HD 2400 and GeForce 8800 GTS 640 - video card comparison
Radeon HD 2400
GeForce 8800 GTS 640
Architecture
TeraScale (2005−2013)
Tesla (2006−2010)
GPU code name
RV610
G80
Market segment
Desktop
Desktop
Release date
February 2008
November 2006
Interface
PCIe 1.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
398 MHz
513 MHz
Floating-point performance
31.84 gflops
228.1 gflops
Manufacturing process technology
65 nm
90 nm
Number of transistors
180 million
681 million
Pipelines / CUDA cores
40
96
Power consumption (TDP)
20 Watt
143 Watt
Texture fill rate
1.592
24.62
Memory type
DDR2
GDDR3
Maximum RAM amount
256 MB
640 MB
Memory bus width
64 Bit
320 Bit
Memory clock speed
990 MHz
1584 MHz
Memory bandwidth
7.92 GB/s
63.36 GB/s
Display Connectors
1x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.0 (10_0)
11.1 (10_0)
CUDA
-
+
OpenCL
N/A
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A