Radeon HD 6490 vs GeForce GT 640 GF116

Radeon HD 6490
GeForce GT 640 GF116
320 Shaders
1GB DDR2
550MHz
144 Shaders
2GB DDR3
720MHz
FP32
0.35 TFLOPS
FP32
0.42 TFLOPS
-
-
-
-
Form Factor
PCIe Card
1.0-Slots
Form Factor
PCIe Card
1.5-Slots
TDP
55W
TDP
75W
-
-
-
-
-
-
-
-
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL - N/A
0%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal - N/A
0%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal - N/A
0%
Manufacturer
AMD
Manufacturer
NVIDIA
Chip Designer
AMD
Chip Designer
NVIDIA
Architecture
TeraScale 2
Architecture
Fermi
Family
Radeon HD 6000
Family
GeForce 600
Codename
Redwood
RV830
Variant
Redwood Pro
Codename
NVCF
GF116
-
-
Market Segment
Desktop
Market Segment
Desktop
Release Date
7/4/2011
Release Date
4/24/2012
Foundry
TSMC
-
Foundry
TSMC
-
Fabrication Node
40nm
-
Fabrication Node
40nm
-
Die Size
104 mm²
-
Die Size
238 mm²
-
Transistor Count
627 Million
-
Transistor Count
1.2 Billion
-
Transistor Density
6.03M/mm²
-
Transistor Density
4.92M/mm²
-
Form
PCIe Card
Form
PCIe Card
Shading Units
320 Shaders
-
Shading Units
144 Shaders
-
Texture Mapping Units
16 TMUs
Texture Mapping Units
24 TMUs
Render Output Units
8 ROPs
Render Output Units
24 ROPs
-
-
-
-
-
-
-
-
-
-
Streaming Multiprocessors
3 SMs
Compute Units
4 CUs
-
-
-
-
-
-
-
-
-
-
-
-
-
550MHz
-
1440MHz Shader
-
720MHz
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
FP32
0.35 TFLOPS
FP32
0.42 TFLOPS
-
-
-
-
-
-
-
FP64
0.04 TFLOPS
-
-
-
-
-
-
-
-
-
-
-
Pixel Fillrate
4.4 GPixel/s
Pixel Fillrate
17.28 GPixel/s
-
-
-
-
Texture Fillrate
8.8 GTexel/s
Texture Fillrate
17.28 GTexel/s
-
-
-
-
L1
-
-
8KB/CU
-
L1
-
64KB/SM
-
-
L2
256KB Shared
L2
384KB Shared
-
-
-
-
-
-
1GB
DDR2
-
2GB
DDR3
-
Bus Width
128Bit
Bus Width
192Bit
Clock
500MHz
Transfer Rate
1GT/s
Bandwidth
16GB/s
Clock
891MHz
Transfer Rate
1.8GT/s
Bandwidth
42.8GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
55W
TDP
75W
-
-
-
-
1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
1x VGA
-
-
-
-
-
-
-
1x DVI-I Dual-Link
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 1.3
-
-
-
-
-
Max Resolution
2560x1600
Max Resolution
2560x1600
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
-
-
Variable Refresh Rate
-
-
-
Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
-
-
-
-
No Encoders
-
No Encoders
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Model
UVD 3.0
No Decoders
Codec
MPEG-1
MPEG-2
MPEG-4
-
VC-1
-
-
-
AVC (H.264)
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Direct X
11
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.5
OpenCL
1.2
-
-
OpenGL
4.6
OpenCL
1.1
-
-
Shader Model
5.0
-
-
GFX
4
-
-
-
-
Shader Model
5.1
CUDA
2.1
-
-
PureVideo HD
VP4
VDPAU
Feature Set C
-
-
-
1x Fan
-
-
-
1x Fan
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Slots Required
1.0
PCIe Version
2.1
PCIe Lanes
16
Slots Required
1.5
PCIe Version
2.0
PCIe Lanes
16
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Height
111 mm (4.37 in)
Width
145 mm (5.71 in)
Depth
30 mm (1.18 in)
Change Results