Radeon HD 3870 X2 and GeForce 8800 Ultra - video card comparison
Passmark - benchmark score Radeon HD 3870 X2 vs GeForce 8800 Ultra
Radeon HD 3870 X2
729
GeForce 8800 Ultra
661
Radeon HD 3870 X2
GeForce 8800 Ultra
Architecture
TeraScale (2005−2013)
Tesla (2006−2010)
GPU code name
R680
G80
Market segment
Desktop
Desktop
Release date
January 2008
May 2007
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
2x 6-pin
SLI options
-
+
Core clock speed
825 MHz
612 MHz
CUDA cores
-
612
Floating-point performance
2x 528.0 gflops
387.1 gflops
Manufacturing process technology
55 nm
90 nm
Number of transistors
666 million
681 million
Pipelines / CUDA cores
320
128
Power consumption (TDP)
165 Watt
171 Watt
Texture fill rate
13.20
39.2 billion/sec
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
512 MB
Memory bus width
256 Bit
384 Bit
Memory clock speed
1802 MHz
1080 MHz
Memory bandwidth
57.66 GB/s
103.7 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
10.1 (10_1)
11.1 (10_0)
CUDA
-
+
OpenCL
N/A
1.1
OpenGL
3.3
3.3
Shader Model
4.1
4.0
Vulkan
N/A
N/A