Radeon HD 3870 X2 and GeForce GTX 285 - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs GeForce GTX 285
Radeon HD 3870 X2
729
GeForce GTX 285
1560
Radeon HD 3870 X2
GeForce GTX 285
Architecture
TeraScale (2005−2013)
Tesla 2.0 (2007−2013)
GPU code name
R680
GT200B
Market segment
Desktop
Desktop
Release date
January 2008
December 2008
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
2x 6-pin
SLI options
-
+
Core clock speed
825 MHz
648 MHz
CUDA cores
-
240
Floating-point performance
2x 528.0 gflops
708.5 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
1,400 million
Pipelines / CUDA cores
320
240
Power consumption (TDP)
165 Watt
204 Watt
Maximum GPU temperature
-
105 °C
Texture fill rate
13.20
51.8 billion/sec
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
256 Bit
512 Bit
Memory clock speed
1802 MHz
1242 MHz
Memory bandwidth
57.66 GB/s
159.0 GB/s
Display Connectors
2x DVI, 1x S-Video
HDTVTwo Dual Link DVI
Multi monitor support
-
+
HDMI
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
S/PDIF
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
+
OpenCL
N/A
1.1
OpenGL
3.3
2.1
Shader Model
4.1
4.0
Vulkan
N/A
N/A
High Dynamic-Range Lighting (HDRR)
-
128bit