NVIDIA GeForce GT 445M vs ATI Mobility Radeon HD 3870 X2

Comparative analysis of NVIDIA GeForce GT 445M and ATI Mobility Radeon HD 3870 X2 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the NVIDIA GeForce GT 445M

  • Videocard is newer: launch date 2 year(s) 0 month(s) later
  • Around 79% higher core clock speed: 1180 MHz vs 660 MHz
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 40 nm vs 55 nm
  • 3.1x lower typical power consumption: 35 Watt vs 110 Watt
  • 3x more maximum memory size: 3 GB vs 2x 512 MB
  • Around 70% better performance in PassMark - G3D Mark: 811 vs 478
  • Around 9% better performance in PassMark - G2D Mark: 203 vs 187
Specifications (specs)
Launch date 3 September 2010 vs 1 September 2008
Core clock speed 1180 MHz vs 660 MHz
Manufacturing process technology 40 nm vs 55 nm
Thermal Design Power (TDP) 35 Watt vs 110 Watt
Maximum memory size 3 GB vs 2x 512 MB
Benchmarks
PassMark - G3D Mark 811 vs 478
PassMark - G2D Mark 203 vs 187

Reasons to consider the ATI Mobility Radeon HD 3870 X2

  • 19.9x more texture fill rate: 2x 10.56 GTexel / s billion / sec vs 10.6 billion / sec
  • 4.4x more pipelines: 640 vs 144
  • 2.5x better floating-point performance: 2x 422.4 gflops vs 339.8 gflops
  • Around 36% higher memory clock speed: 1700 MHz vs 1250 MHz
Texture fill rate 2x 10.56 GTexel / s billion / sec vs 10.6 billion / sec
Pipelines 640 vs 144
Floating-point performance 2x 422.4 gflops vs 339.8 gflops
Memory clock speed 1700 MHz vs 1250 MHz

Compare benchmarks

GPU 1: NVIDIA GeForce GT 445M
GPU 2: ATI Mobility Radeon HD 3870 X2

PassMark - G3D Mark
GPU 1
GPU 2
811
478
PassMark - G2D Mark
GPU 1
GPU 2
203
187
Name NVIDIA GeForce GT 445M ATI Mobility Radeon HD 3870 X2
PassMark - G3D Mark 811 478
PassMark - G2D Mark 203 187
Geekbench - OpenCL 12379
GFXBench 4.0 - Manhattan (Frames) 3274
GFXBench 4.0 - Manhattan (Fps) 3274
GFXBench 4.0 - T-Rex (Frames) 3350
GFXBench 4.0 - T-Rex (Fps) 3350

Compare specifications (specs)

NVIDIA GeForce GT 445M ATI Mobility Radeon HD 3870 X2

Essentials

Architecture Fermi TeraScale
Code name GF106 M88
Launch date 3 September 2010 1 September 2008
Place in performance rating 878 879
Type Laptop Laptop

Technical info

Core clock speed 1180 MHz 660 MHz
CUDA cores 144
Floating-point performance 339.8 gflops 2x 422.4 gflops
Manufacturing process technology 40 nm 55 nm
Pipelines 144 640
Texture fill rate 10.6 billion / sec 2x 10.56 GTexel / s billion / sec
Thermal Design Power (TDP) 35 Watt 110 Watt
Transistor count 1,170 million 666 million

Video outputs and ports

Display Connectors No outputs No outputs

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 2.0 x16
Laptop size large large

API support

DirectX 12 API 10.1
OpenCL 1.1
OpenGL 4.5 3.3

Memory

Maximum RAM amount 3 GB 2x 512 MB
Memory bandwidth 60.0 GB / s 2x 54.4 GB / s
Memory bus width 192 Bit 256 Bit
Memory clock speed 1250 MHz 1700 MHz
Memory type GDDR5 GDDR3
Shared memory 0 0

Technologies

3D Vision
CUDA
DirectCompute
DirectX 11 DirectX 11
Optimus
SLI