Mobility Radeon HD 3870 X2 and GeForce GTX 260M - video card comparison
Mobility Radeon HD 3870 X2
GeForce GTX 260M
Architecture
RV6xx (2007−2010)
G9x (2007−2010)
GPU code name
M88-XT CF
N10E-GT
Market segment
Laptop
Laptop
Release date
September 2008
March 2009
Bus support
-
PCI-E 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
SLI options
-
2-way
MXM Type
-
MXM 3.0 Type-B
Core clock speed
660 MHz
550 MHz
CUDA cores
-
112
Floating-point performance
2x 422.4 gflops
308 gflops
Gigaflops
-
462
Manufacturing process technology
55 nm
55 nm
Number of transistors
666 million
754 million
Pipelines / CUDA cores
640
112
Power consumption (TDP)
110 Watt
75 Watt
Texture fill rate
10.56
31 billion/sec
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
850 MHz
Up to 950 MHz
Memory bandwidth
54.4 GB/s
61 GB/s
Shared memory
-
-
Display Connectors
No outputs
DisplayPortSingle Link DVIDual Link DVIVGALVDSHDMI
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
Power management
-
8.0