AMD Radeon R9 M385X vs AMD Radeon HD 7870M

Comparative analysis of AMD Radeon R9 M385X and AMD Radeon HD 7870M 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

AMD Radeon HD 7870M

Differences

Reasons to consider the AMD Radeon R9 M385X

Videocard is newer: launch date 3 year(s) 0 month(s) later
Around 25% higher core clock speed: 1000 MHz vs 800 MHz
Around 93% higher texture fill rate: 61.6 GTexel / s vs 32 GTexel / s
Around 40% higher pipelines: 896 vs 640
Around 92% better floating-point performance: 1,971 gflops vs 1,024 gflops
2x more maximum memory size: 4 GB vs 2 GB
Around 32% better performance in PassMark - G3D Mark: 1994 vs 1507
2.7x better performance in GFXBench 4.0 - Manhattan (Frames): 3707 vs 1367
2.7x better performance in GFXBench 4.0 - Manhattan (Fps): 3707 vs 1367

Specifications (specs)
Launch date	5 May 2015 vs 24 April 2012
Core clock speed	1000 MHz vs 800 MHz
Texture fill rate	61.6 GTexel / s vs 32 GTexel / s
Pipelines	896 vs 640
Floating-point performance	1,971 gflops vs 1,024 gflops
Maximum memory size	4 GB vs 2 GB
Benchmarks
PassMark - G3D Mark	1994 vs 1507
GFXBench 4.0 - Manhattan (Frames)	3707 vs 1367
GFXBench 4.0 - Manhattan (Fps)	3707 vs 1367

Reasons to consider the AMD Radeon HD 7870M

2.7x more memory clock speed: 4000 MHz vs 1500 MHz
2.1x better performance in PassMark - G2D Mark: 556 vs 267

Specifications (specs)
Memory clock speed	4000 MHz vs 1500 MHz
Benchmarks
PassMark - G2D Mark	556 vs 267
GFXBench 4.0 - T-Rex (Frames)	3359 vs 3357
GFXBench 4.0 - T-Rex (Fps)	3359 vs 3357

Compare benchmarks

GPU 1: AMD Radeon R9 M385X
GPU 2: AMD Radeon HD 7870M

PassMark - G2D Mark

GPU 1

GPU 2

267

556

PassMark - G3D Mark

GPU 1

GPU 2

1994

1507

GFXBench 4.0 - Manhattan (Frames)

GPU 1

GPU 2

3707

1367

GFXBench 4.0 - Manhattan (Fps)

GPU 1

GPU 2

3707

1367

GFXBench 4.0 - T-Rex (Frames)

GPU 1

GPU 2

3357

3359

GFXBench 4.0 - T-Rex (Fps)

GPU 1

GPU 2

3357

3359

Name	AMD Radeon R9 M385X	AMD Radeon HD 7870M
GFXBench 4.0 - Car Chase Offscreen (Frames)	4079
GFXBench 4.0 - Car Chase Offscreen (Fps)	4079
PassMark - G2D Mark	267	556
PassMark - G3D Mark	1994	1507
Geekbench - OpenCL	49760
GFXBench 4.0 - Manhattan (Frames)	3707	1367
GFXBench 4.0 - Manhattan (Fps)	3707	1367
GFXBench 4.0 - T-Rex (Frames)	3357	3359
GFXBench 4.0 - T-Rex (Fps)	3357	3359

Compare specifications (specs)

	AMD Radeon R9 M385X	AMD Radeon HD 7870M
Essentials
Architecture	GCN 2.0	GCN 1.0
Code name	Strato	Heathrow
Design	AMD Radeon R9 300 Series
Launch date	5 May 2015	24 April 2012
Place in performance rating	575	577
Type	Desktop	Laptop
Technical info
Boost clock speed	1100 MHz
Core clock speed	1000 MHz	800 MHz
Floating-point performance	1,971 gflops	1,024 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	896	640
Texture fill rate	61.6 GTexel / s	32 GTexel / s
Transistor count	2,080 million	1,500 million
Thermal Design Power (TDP)		45 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 3.0 x16
Laptop size	large	large
API support
DirectX	12	12.0 (11_1)
Mantle
OpenCL	Not Listed
OpenGL	4.4	4.5
Memory
Maximum RAM amount	4 GB	2 GB
Memory bandwidth	76.8 GB / s	64 GB / s
Memory bus width	128 bit	128 Bit
Memory clock speed	1500 MHz	4000 MHz
Memory type	GDDR5	GDDR5
Shared memory	0	0
Technologies
AMD Eyefinity
DirectCompute 5.0
DualGraphics
FreeSync
HD3D
PowerTune
Switchable graphics
ZeroCore