2x FirePro D300 vs ATI Radeon HD 2600 XT Mac

2x FirePro D300
ATI Radeon HD 2600 XT Mac $119
2x 1280 Shaders
4GB (2x 2GB) GDDR5
850MHz
120 Shaders
256MB GDDR3
700MHz
Peak AI Performance
4.35 TFLOPS
FP32
Peak AI Performance
170 GFLOPS
FP32
FP32
4.35 TFLOPS
FP32
170 GFLOPS
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Form Factor
Mac Pro Card
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Form Factor
PCIe Card
1.0-Slots
TDP
300W
TDP
45W
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GB6 OpenCL N/A
0%
GB6 OpenCL N/A
0%
GB6 Metal N/A
0%
GB6 Metal N/A
0%
GB6 Vulkan N/A
0%
GB6 Vulkan N/A
0%
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
Apple
Manufacturer
ATI
Chip Designer
AMD
Chip Designer
ATI
Architecture
GCN 1
Architecture
TeraScale 1
Family
FirePro D
Family
Radeon HD 2000
Codename
Pitcairn
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Variant
Pitcairn XT GL
Codename
Shaka
RV630
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Market Segment
Workstation
Market Segment
Desktop
Release Date
1/18/2014
Release Date
6/28/2007
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
28nm
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Fabrication Node
65nm
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Die Size
2x 212 mm²
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Die Size
153 mm²
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Transistor Count
2x 2.8 Billion
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Transistor Count
390 Million
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Transistor Density
13.21M/mm²
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Transistor Density
2.55M/mm²
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Form
Mac Pro Card
Form
PCIe Card
Shading Units
2x 1280 Shaders
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Shading Units
120 Shaders
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Texture Mapping Units
2x 80 TMUs
Texture Mapping Units
8 TMUs
Render Output Units
2x 32 ROPs
Render Output Units
4 ROPs
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Compute Units
2x 20 CUs
Compute Units
3 CUs
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850MHz
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700MHz
Peak AI Performance
4.35 TFLOPS
FP32
Peak AI Performance
170 GFLOPS
FP32
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FP32
4.35 TFLOPS
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FP32
170 GFLOPS
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FP64
270 GFLOPS
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Pixel Fillrate
27.2 GPixel/s
Pixel Fillrate
2.8 GPixel/s
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Texture Fillrate
68 GTexel/s
Texture Fillrate
5.6 GTexel/s
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L1
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16KB/CU
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L1
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Unknown
L2
512KB Shared
L2
64KB Shared
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4GB (2x 2GB)
GDDR5
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256MB
GDDR3
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Bus Width
256Bit
Bus Width
128Bit
Clock
1270MHz
Transfer Rate
5.1GT/s
Bandwidth
162.6GB/s
Clock
800MHz
Transfer Rate
1.6GT/s
Bandwidth
25.6GB/s
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TDP
300W
TDP
45W
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No Ports
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2x DVI-I Dual-Link
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Max Resolution
4096x2160
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
3
Multi Monitor Support
2
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Model
VCE 1.0
No Encoders
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Codec
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AVC (H.264)
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Model
UVD 4.0
Model
UVD 1.0
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
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VC-1
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AVC (H.264)
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Direct X
12
Direct 3D
11_1
Direct X
10
Direct 3D
10_0
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
OpenGL
3.3
OpenCL
1.1
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Shader Model
6.5
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GFX
6
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Shader Model
4.0
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GFX
3
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Not a Card
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1x Fan
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PCIe Version
3.0
PCIe Lanes
16
Slots Required
1.0
PCIe Version
1.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
2-way CrossFireX
Multi GPU Support
Supported
Type
4-way CrossFireX
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Change Comparison