Radeon HD 6650M vs GeForce GTX 660M Mac

Radeon HD 6650M
GeForce GTX 660M Mac
480 Shaders
1GB DDR3
600MHz
384 Shaders
512MB GDDR5
950MHz
FP32
0.58 TFLOPS
FP32
0.73 TFLOPS
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Form Factor
Soldered
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Form Factor
Soldered
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TDP
35W
TDP
50W
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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
Kepler
Family
Radeon HD 6000
Family
GeForce 600
Codename
Turks
RV930
Variant
Whistler Pro
Codename
NVE7
GK107
Variant
N13E-GE
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/4/2011
Release Date
3/22/2012
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
40nm
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Fabrication Node
28nm
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Die Size
118 mm²
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Die Size
118 mm²
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Transistor Count
716 Million
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Transistor Count
1.3 Billion
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Transistor Density
6.07M/mm²
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Transistor Density
10.76M/mm²
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Form
Soldered
Form
Soldered
Shading Units
480 Shaders
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Shading Units
384 Shaders
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Texture Mapping Units
24 TMUs
Texture Mapping Units
32 TMUs
Render Output Units
8 ROPs
Render Output Units
16 ROPs
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Streaming Multiprocessors
2 SMs
Compute Units
6 CUs
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600MHz
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950MHz
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FP32
0.58 TFLOPS
FP32
0.73 TFLOPS
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FP64
0.03 TFLOPS
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Pixel Fillrate
4.8 GPixel/s
Pixel Fillrate
15.2 GPixel/s
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Texture Fillrate
14.4 GTexel/s
Texture Fillrate
30.4 GTexel/s
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L1
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8KB/CU
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L1
48KB/SM Tex
16KB/SM
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L2
256KB Shared
L2
256KB Shared
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1GB
DDR3
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512MB
GDDR5
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Bus Width
128Bit
Bus Width
128Bit
Clock
900MHz
Transfer Rate
1.8GT/s
Bandwidth
28.8GB/s
Clock
1250MHz
Transfer Rate
5GT/s
Bandwidth
80GB/s
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TDP
35W
TDP
50W
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No Ports
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No Ports
Max Resolution
2560x1600
Max Resolution
4096x2304
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
30Hz
Variable Refresh Rate
-
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Variable Refresh Rate
G-Sync
FreeSync
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Display Stream Compression (DSC)
Not Supported
Display Stream Compression (DSC)
Not Supported
Multi Monitor Support
2
Multi Monitor Support
2
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No Encoders
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Model
NVENC 1
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Codec
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AVC (H.264)
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Model
UVD 3.0
Model
NVDEC 1
Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Codec
MPEG-1
MPEG-2
MPEG-4
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VC-1
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AVC (H.264)
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Direct X
11
Direct 3D
11_0
Direct X
12
Direct 3D
11_0
OpenGL
4.5
OpenCL
1.2
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OpenGL
4.6
OpenCL
3.0
Vulkan
1.2
Shader Model
5.0
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GFX
4
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Shader Model
6.5
CUDA
3.0
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PureVideo HD
VP5
VDPAU
Feature Set D
Not a Card
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Not a Card
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PCIe Version
2.1
PCIe Lanes
16
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PCIe Version
3.0
PCIe Lanes
16
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Change Results