ATI Radeon HD 3870 Mac Edition vs ATI Mobility Radeon HD 3850

Comparative analysis of ATI Radeon HD 3870 Mac Edition and ATI Mobility Radeon HD 3850 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark.

 

Differences

Reasons to consider the ATI Radeon HD 3870 Mac Edition

  • Around 34% higher core clock speed: 777 MHz vs 580 MHz
  • Around 34% higher texture fill rate: 12.43 GTexel / s vs 9.28 GTexel / s
  • Around 34% better floating-point performance: 497.3 gflops vs 371.2 gflops
  • Around 50% higher memory clock speed: 2252 MHz vs 1500 MHz
Core clock speed 777 MHz vs 580 MHz
Texture fill rate 12.43 GTexel / s vs 9.28 GTexel / s
Floating-point performance 497.3 gflops vs 371.2 gflops
Memory clock speed 2252 MHz vs 1500 MHz

Reasons to consider the ATI Mobility Radeon HD 3850

  • 3x lower typical power consumption: 35 Watt vs 106 Watt
Thermal Design Power (TDP) 35 Watt vs 106 Watt

Compare benchmarks

GPU 1: ATI Radeon HD 3870 Mac Edition
GPU 2: ATI Mobility Radeon HD 3850

Name ATI Radeon HD 3870 Mac Edition ATI Mobility Radeon HD 3850
PassMark - G3D Mark 366
PassMark - G2D Mark 248

Compare specifications (specs)

ATI Radeon HD 3870 Mac Edition ATI Mobility Radeon HD 3850

Essentials

Architecture TeraScale TeraScale
Code name RV670 M88
Launch date 12 June 2008 4 June 2008
Place in performance rating not rated 659
Type Desktop Laptop

Technical info

Core clock speed 777 MHz 580 MHz
Floating-point performance 497.3 gflops 371.2 gflops
Manufacturing process technology 55 nm 55 nm
Pipelines 320 320
Texture fill rate 12.43 GTexel / s 9.28 GTexel / s
Thermal Design Power (TDP) 106 Watt 35 Watt
Transistor count 666 million 666 million

Video outputs and ports

Display Connectors 2x DVI, 1x S-Video No outputs
HDCP
HDMI

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 2.0 x16
Length 241 mm
Supplementary power connectors 1x 6-pin
Laptop size large

API support

DirectX 10.0 10.1
OpenGL 3.3 3.3

Memory

Maximum RAM amount 512 MB 512 MB
Memory bandwidth 72.1 GB / s 48.0 GB / s
Memory bus width 256 Bit 256 Bit
Memory clock speed 2252 MHz 1500 MHz
Memory type GDDR4 GDDR3
Shared memory 0