Radeon HD 4850 Mac vs Radeon HD 6750M Mac+ MXM

Radeon HD 4850 Mac
Radeon HD 6750M Mac+ MXM
800 Shaders
512MB GDDR3
500MHz
480 Shaders
512MB GDDR5
598MHz
FP32
0.8 TFLOPS
FP32
0.57 TFLOPS
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Form Factor
MXM-A
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Form Factor
MXM-A
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TDP
Unknown
TDP
35W
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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
ATI
Manufacturer
AMD
Chip Designer
ATI
Chip Designer
AMD
Architecture
TeraScale 1
Architecture
TeraScale 2
Family
Radeon HD 4000
Family
Radeon HD 6000
Codename
Wekiva
RV770
Variant
M98
Codename
Turks
RV930
Variant
Whistler Pro
Market Segment
Laptop
Market Segment
Laptop
Release Date
1/9/2009
Release Date
1/4/2011
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
55nm
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Fabrication Node
40nm
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Die Size
256 mm²
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Die Size
118 mm²
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Transistor Count
956 Million
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Transistor Count
716 Million
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Transistor Density
3.73M/mm²
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Transistor Density
6.07M/mm²
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Form
MXM-A
Form
MXM-A
Shading Units
800 Shaders
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Shading Units
480 Shaders
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Texture Mapping Units
40 TMUs
Texture Mapping Units
24 TMUs
Render Output Units
16 ROPs
Render Output Units
8 ROPs
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Compute Units
10 CUs
Compute Units
6 CUs
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500MHz
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598MHz
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FP32
0.8 TFLOPS
FP32
0.57 TFLOPS
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FP64
0.16 TFLOPS
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Pixel Fillrate
8 GPixel/s
Pixel Fillrate
4.784 GPixel/s
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Texture Fillrate
20 GTexel/s
Texture Fillrate
14.352 GTexel/s
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L1
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16KB/CU
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L1
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8KB/CU
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L2
256KB Shared
L2
256KB Shared
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512MB
GDDR3
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512MB
GDDR5
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Bus Width
256Bit
Bus Width
128Bit
Clock
850MHz
Transfer Rate
1.7GT/s
Bandwidth
54.4GB/s
Clock
794MHz
Transfer Rate
3.2GT/s
Bandwidth
50.8GB/s
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TDP
Unknown
TDP
35W
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No Ports
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No Ports
Max Resolution
2560x1600
Max Resolution
2560x1600
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
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Variable Refresh Rate
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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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No Encoders
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Model
UVD 2.0
Model
UVD 3.0
Codec
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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
10
Direct 3D
10_1
Direct X
11
Direct 3D
11_0
OpenGL
3.3
OpenCL
1.1
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OpenGL
4.5
OpenCL
1.2
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Shader Model
4.1
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GFX
3
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Shader Model
5.0
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GFX
4
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Not a Card
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Not a Card
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PCIe Version
2.0
PCIe Lanes
16
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PCIe Version
2.1
PCIe Lanes
16
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Change Results