AMD Radeon R9 M385X vs ATI Mobility Radeon HD 3870

Comparative analysis of AMD Radeon R9 M385X and ATI Mobility Radeon HD 3870 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: GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), PassMark - G2D Mark, PassMark - G3D 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).

AMD Radeon R9 M385X

ATI Mobility Radeon HD 3870

Differences

Reasons to consider the AMD Radeon R9 M385X

Videocard is newer: launch date 6 year(s) 11 month(s) later
Around 52% higher core clock speed: 1000 MHz vs 660 MHz
5.8x more texture fill rate: 61.6 GTexel / s vs 10.56 GTexel / s
2.8x more pipelines: 896 vs 320
4.7x better floating-point performance: 1,971 gflops vs 422.4 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
8x more maximum memory size: 4 GB vs 512 MB
3.6x better performance in PassMark - G3D Mark: 1994 vs 548

Specifications (specs)
Launch date	5 May 2015 vs 4 June 2008
Core clock speed	1000 MHz vs 660 MHz
Texture fill rate	61.6 GTexel / s vs 10.56 GTexel / s
Pipelines	896 vs 320
Floating-point performance	1,971 gflops vs 422.4 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	4 GB vs 512 MB
Benchmarks
PassMark - G3D Mark	1994 vs 548

Reasons to consider the ATI Mobility Radeon HD 3870

Around 13% higher memory clock speed: 1700 MHz vs 1500 MHz
Around 8% better performance in PassMark - G2D Mark: 288 vs 267

Specifications (specs)
Memory clock speed	1700 MHz vs 1500 MHz
Benchmarks
PassMark - G2D Mark	288 vs 267

Compare benchmarks

GPU 1: AMD Radeon R9 M385X
GPU 2: ATI Mobility Radeon HD 3870

PassMark - G2D Mark

GPU 1

GPU 2

267

288

PassMark - G3D Mark

GPU 1

GPU 2

1994

548

Name	AMD Radeon R9 M385X	ATI Mobility Radeon HD 3870
GFXBench 4.0 - Car Chase Offscreen (Frames)	4079
GFXBench 4.0 - Car Chase Offscreen (Fps)	4079
PassMark - G2D Mark	267	288
PassMark - G3D Mark	1994	548
Geekbench - OpenCL	49760
GFXBench 4.0 - Manhattan (Frames)	3707
GFXBench 4.0 - Manhattan (Fps)	3707
GFXBench 4.0 - T-Rex (Frames)	3357
GFXBench 4.0 - T-Rex (Fps)	3357

Compare specifications (specs)

	AMD Radeon R9 M385X	ATI Mobility Radeon HD 3870
Essentials
Architecture	GCN 2.0	TeraScale
Code name	Strato	M88
Design	AMD Radeon R9 300 Series
Launch date	5 May 2015	4 June 2008
Place in performance rating	567	565
Type	Desktop	Laptop
Technical info
Boost clock speed	1100 MHz
Core clock speed	1000 MHz	660 MHz
Floating-point performance	1,971 gflops	422.4 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	896	320
Texture fill rate	61.6 GTexel / s	10.56 GTexel / s
Transistor count	2,080 million	666 million
Thermal Design Power (TDP)		55 Watt
Video outputs and ports
Display Connectors	No outputs	No outputs
Eyefinity
Compatibility, dimensions and requirements
Bus support	PCIe 3.0
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Laptop size	large	large
API support
DirectX	12	10.1
Mantle
OpenCL	Not Listed
OpenGL	4.4	3.3
Memory
Maximum RAM amount	4 GB	512 MB
Memory bandwidth	76.8 GB / s	54.4 GB / s
Memory bus width	128 bit	256 Bit
Memory clock speed	1500 MHz	1700 MHz
Memory type	GDDR5	GDDR3
Shared memory	0	0
Technologies
AMD Eyefinity
DirectCompute 5.0
DualGraphics
FreeSync
HD3D
PowerTune
Switchable graphics
ZeroCore
PowerPlay 7.0