GeForce GTX 480M and Mobility Radeon HD 3870 X2 - video card comparison
GeForce GTX 480M
Mobility Radeon HD 3870 X2
Architecture
Fermi (2010−2014)
RV6xx (2007−2010)
GPU code name
N11E-GTX-A3
M88-XT CF
Market segment
Laptop
Laptop
Release date
May 2010
September 2008
Bus support
PCI-E 2.0
-
Interface
MXM-B (3.0)
PCIe 2.0 x16
Supplementary power connectors
None
-
SLI options
+
-
Core clock speed
425 MHz
660 MHz
Floating-point performance
598.4 gflops
2x 422.4 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
3,100 million
666 million
Pipelines / CUDA cores
352
640
Power consumption (TDP)
100 Watt
110 Watt
Texture fill rate
18.7 billion/sec
10.56
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1200 MHz
850 MHz
Memory bandwidth
76.8 GB/s
54.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Maximum VGA resolution
2048x1536
-
DirectX
12 API
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
3.3
Shader Model
5.1
4.1
Vulkan
N/A
N/A