NVIDIA GeForce GTX 285 Mac vs ATI Radeon HD 3870
NVIDIA GeForce GTX 285 Mac
$400
ATI Radeon HD 3870
$219
|
240 Shaders
1GB GDDR3
648MHz
|
320 Shaders
1GB GDDR4
777MHz
|
|
Peak AI Performance
0.71 TOPS
INT32
|
Peak AI Performance
500 GFLOPS
FP32
|
|
FP32
710 GFLOPS
|
FP32
500 GFLOPS
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
2.0-Slots
|
|
TDP
204W
|
TDP
106W
|
|
Power Connectors
2x 6-Pin
|
Power Connectors
1x 6-Pin
|
Peak AI Performance
|
|
GeForce GTX 285 Mac - 0.71 TOPS INT32
x1.42
Radeon HD 3870 - 500 GFLOPS FP32
x1
FP32
|
|
GeForce GTX 285 Mac - 710 GFLOPS FP32
x1.42
Radeon HD 3870 - 500 GFLOPS FP32
x1
|
|
GeForce GTX 285 Mac - 159GB/s
x2.21
Radeon HD 3870 - 72.1GB/s
x1
|
|
GeForce GTX 285 Mac - 204W
x1.92
Radeon HD 3870 - 106W
x1
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0%
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0%
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0%
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0%
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0%
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Manufacturer
NVIDIA
|
Manufacturer
ATI
|
|
Chip Designer
NVIDIA
|
Chip Designer
ATI
|
|
Architecture
Tesla 2
|
Architecture
TeraScale 1
|
|
Family
GeForce 200
|
Family
Radeon HD 3000
|
|
Codename
NVA0
GT200B
Variant
GT200-350-B3
|
Codename
Boom
RV670
Variant
RV670 XT
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
1/15/2009
|
Release Date
11/19/2007
|
|
Foundry
TSMC
|
Foundry
TSMC
|
|
Fabrication Node
55nm
|
Fabrication Node
55nm
|
|
Die Size
470 mm²
|
Die Size
192 mm²
|
|
Transistor Count
1.4 Billion
|
Transistor Count
666 Million
|
|
Transistor Density
2.98M/mm²
|
Transistor Density
3.47M/mm²
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
240 Shaders
|
Shading Units
320 Shaders
|
|
Texture Mapping Units
80 TMUs
|
Texture Mapping Units
16 TMUs
|
|
Render Output Units
32 ROPs
|
Render Output Units
16 ROPs
|
|
Streaming Multiprocessors
30 SMs
|
-
-
|
|
-
-
|
Compute Units
4 CUs
|
|
1476MHz Shader
648MHz
|
-
777MHz
|
|
Peak AI Performance
0.71 TOPS
INT32
|
Peak AI Performance
500 GFLOPS
FP32
|
|
FP32
710 GFLOPS
|
FP32
500 GFLOPS
|
|
FP64
90 GFLOPS
|
FP64
100 GFLOPS
|
|
INT32
0.71 TOPS
|
-
-
|
|
Pixel Fillrate
20.736 GPixel/s
|
Pixel Fillrate
12.432 GPixel/s
|
|
Texture Fillrate
51.84 GTexel/s
|
Texture Fillrate
12.432 GTexel/s
|
|
L1
Unknown
|
L1
Unknown
|
|
L2
256KB Shared
|
L2
256KB Shared
|
|
1GB
GDDR3
|
1GB
GDDR4
|
|
Bus Width
512Bit
|
Bus Width
256Bit
|
|
Clock
1242MHz
Transfer Rate
2.5GT/s
Bandwidth
159GB/s
|
Clock
1126MHz
Transfer Rate
2.3GT/s
Bandwidth
72.1GB/s
|
|
TDP
204W
|
TDP
106W
|
|
-
2x DVI-I Dual-Link
|
1x S-Video
2x DVI-I Dual-Link
|
|
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
|
|
No Decoders
|
Model
UVD 1.0
|
|
-
-
|
Codec
VC-1
AVC (H.264)
|
|
Direct X
11
Direct 3D
10_0
|
Direct X
10
Direct 3D
10_1
|
|
OpenGL
3.3
OpenCL
1.1
|
OpenGL
3.3
OpenCL
1.1
|
|
Shader Model
4.0
CUDA
1.3
-
-
PureVideo HD
VP2
VDPAU
Feature Set A
|
Shader Model
4.1
-
-
GFX
3
-
-
-
-
|
|
1x Fan
|
1x Fan
|
|
Power Connectors
2x 6-Pin
|
Power Connectors
1x 6-Pin
|
|
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
|
Slots Required
2.0
PCIe Version
2.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
3-way SLI
|
Multi GPU Support
Supported
Type
4-way CrossFireX
|
|
Height
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
38 mm (1.5 in)
|
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