Mobility Radeon HD 3870 and GeForce 8700M GT SLI - video card comparison
Mobility Radeon HD 3870
GeForce 8700M GT SLI
Architecture
RV6xx (2007−2010)
G8x (2007−2008)
GPU code name
M88-XT
NB8E-SE
Market segment
Laptop
Laptop
Release date
March 2008
September 2007
Interface
PCIe 2.0 x16
-
Core clock speed
660 MHz
625 MHz
Floating-point performance
422.4 gflops
-
Manufacturing process technology
55 nm
80 nm
Number of transistors
666 million
578 Million
Pipelines / CUDA cores
320
64
Power consumption (TDP)
55 Watt
58 Watt
Texture fill rate
10.56
-
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
850 MHz
800 MHz
Memory bandwidth
54.4 GB/s
-
Shared memory
-
-
Display Connectors
No outputs
-
DirectX
10.1 (10_1)
10
OpenCL
N/A
-
OpenGL
3.3
-
Shader Model
4.1
-
Vulkan
N/A
-