Radeon HD 4650 and GeForce 8800 GTS 640 - video card comparison
Radeon HD 4650
GeForce 8800 GTS 640
Architecture
TeraScale (2005−2013)
Tesla (2006−2010)
GPU code name
RV730
G80
Market segment
Desktop
Desktop
Release date
September 2008
November 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
-
1x 6-pin
Core clock speed
600 MHz
513 MHz
Floating-point performance
384.0 gflops
228.1 gflops
Manufacturing process technology
55 nm
90 nm
Number of transistors
514 million
681 million
Pipelines / CUDA cores
320
96
Power consumption (TDP)
48 Watt
143 Watt
Texture fill rate
19.20
24.62
Memory type
GDDR3
GDDR3
Maximum RAM amount
256 MB
640 MB
Memory bus width
128 Bit
320 Bit
Memory clock speed
1400 MHz
1584 MHz
Memory bandwidth
22.4 GB/s
63.36 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
+
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A