ATI Radeon HD 3870 X2 vs NVIDIA GeForce GTX 260
ATI Radeon HD 3870 X2
$449
NVIDIA GeForce GTX 260
$400
|
2x 320 Shaders
1024MB (2x 512MB) GDDR4
825MHz
|
192 Shaders
896MB GDDR3
576MHz
|
|
Peak AI Performance
1.06 TFLOPS
FP32
|
Peak AI Performance
0.48 TOPS
INT32
|
|
FP32
1.06 TFLOPS
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FP32
480 GFLOPS
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-
-
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-
-
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Form Factor
PCIe Card
2.0-Slots
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Form Factor
PCIe Card
2.0-Slots
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TDP
165W
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TDP
182W
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Power Connectors
1x 6-Pin
1x 8-Pin
-
-
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Power Connectors
2x 6-Pin
-
-
-
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GB6 OpenCL N/A
0%
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GB6 OpenCL N/A
0%
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GB6 Metal N/A
0%
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GB6 Metal N/A
0%
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GB6 Vulkan N/A
0%
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GB6 Vulkan N/A
0%
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GB5 OpenCL N/A
0%
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GB5 OpenCL N/A
0%
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GB5 CUDA N/A
0%
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GB5 CUDA N/A
0%
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GB5 Metal N/A
0%
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GB5 Metal N/A
0%
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GB5 Vulkan N/A
0%
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GB5 Vulkan N/A
0%
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OCT 2020.1 N/A
0%
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OCT 2020.1 N/A
0%
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OCT Metal N/A
0%
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OCT Metal N/A
0%
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Peak AI
Performance
1.06 TFLOPS
FP32
|
Peak AI
Performance
0.48 TOPS
INT32
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-
-
-
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-
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-
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-
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-
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-
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-
-
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-
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-
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-
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-
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FP32
1.06 TFLOPS
-
-
|
FP32
480 GFLOPS
-
-
|
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FP64
210 GFLOPS
-
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FP64
60 GFLOPS
-
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-
-
-
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-
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-
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INT32
0.48 TOPS
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-
-
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-
-
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Pixel
Fillrate
13.2 GPixel/s
|
Pixel
Fillrate
16.128 GPixel/s
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-
-
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-
-
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Texture
Fillrate
13.2 GTexel/s
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Texture
Fillrate
36.864 GTexel/s
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Manufacturer
ATI
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Manufacturer
NVIDIA
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Chip Designer
ATI
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Chip Designer
NVIDIA
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Architecture
TeraScale 1
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Architecture
Tesla 2
|
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Family
Radeon HD 3000
|
Family
GeForce 200
|
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Codename
Boom
R680
Variant
R680 XT
|
Codename
NVA0
GT200
Variant
GT200-100-A2
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Market Segment
Desktop
|
Market Segment
Desktop
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Release Date
1/28/2008
|
Release Date
6/16/2008
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
55nm
-
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Fabrication Node
65nm
-
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Die Size
2x 192 mm²
-
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Die Size
576 mm²
-
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Transistor Count
2x 666 Million
-
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Transistor Count
1.4 Billion
-
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Transistor Density
3.47M/mm²
-
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Transistor Density
2.43M/mm²
-
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Form
PCIe Card
|
Form
PCIe Card
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Shading Units
2x 320 Shaders
-
|
Shading Units
192 Shaders
-
|
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Texture Mapping Units
2x 16 TMUs
|
Texture Mapping Units
64 TMUs
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Render Output Units
2x 16 ROPs
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Render Output Units
28 ROPs
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-
-
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-
-
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-
-
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-
-
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-
-
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Streaming Multiprocessors
24 SMs
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Compute Units
2x 4 CUs
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-
-
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-
-
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-
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-
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-
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-
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825MHz
|
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1242MHz Shader
-
576MHz
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-
-
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-
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L1
-
-
-
Unknown
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L1
-
-
-
Unknown
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L2
256KB Shared
|
L2
256KB Shared
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-
-
-
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-
-
-
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1024MB (2x 512MB)
GDDR4
-
|
896MB
GDDR3
-
|
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Bus Width
256Bit
|
Bus Width
448Bit
|
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Clock
1125MHz
Transfer Rate
2.3GT/s
Bandwidth
72GB/s
|
Clock
999MHz
Transfer Rate
2GT/s
Bandwidth
111.9GB/s
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TDP
165W
|
TDP
182W
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-
-
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-
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1x S-Video
-
-
-
-
-
-
2x DVI-I Dual-Link
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1x S-Video
-
-
-
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-
2x DVI-I Dual-Link
-
-
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-
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-
-
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Max Resolution
2560x1600
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Max Resolution
2560x1600
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Max Resolution Refresh Rate
60Hz
|
Max Resolution Refresh Rate
60Hz
|
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Variable Refresh Rate
-
-
-
|
Variable Refresh Rate
-
-
-
|
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Display Stream Compression (DSC)
Not Supported
|
Display Stream Compression (DSC)
Not Supported
|
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Multi Monitor Support
2
|
Multi Monitor Support
2
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-
-
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-
-
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No Encoders
-
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No Encoders
-
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Model
UVD 1.0
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No Decoders
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Codec
-
-
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VC-1
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AVC (H.264)
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-
-
-
-
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-
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Direct X
10
Direct 3D
10_1
|
Direct X
11
Direct 3D
10_0
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OpenGL
3.3
OpenCL
1.1
-
-
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OpenGL
3.3
OpenCL
1.1
-
-
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Shader Model
4.1
-
-
GFX
3
-
-
-
-
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Shader Model
4.0
CUDA
1.3
-
-
PureVideo HD
VP2
VDPAU
Feature Set A
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-
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1x Fan
|
-
-
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1x Fan
|
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Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
Power Connectors
-
-
2x 6-Pin
-
-
-
-
|
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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
2-way CrossFireX
|
Multi GPU Support
Supported
Type
3-way SLI
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-
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-
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Height
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
38 mm (1.5 in)
|
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