NVIDIA GeForce GTX 850M vs ATI Mobility Radeon HD 3870 X2

Comparative analysis of NVIDIA GeForce GTX 850M 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

NVIDIA GeForce GTX 850M

ATI Mobility Radeon HD 3870 X2

Differences

Reasons to consider the NVIDIA GeForce GTX 850M

Videocard is newer: launch date 5 year(s) 6 month(s) later
Around 37% better floating-point performance: 1,155 gflops vs 2x 422.4 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
2.4x lower typical power consumption: 45 Watt vs 110 Watt
2x more maximum memory size: 2 GB vs 2x 512 MB
5.3x better performance in PassMark - G3D Mark: 2521 vs 478
Around 20% better performance in PassMark - G2D Mark: 225 vs 187

Specifications (specs)
Launch date	12 March 2014 vs 1 September 2008
Floating-point performance	1,155 gflops vs 2x 422.4 gflops
Manufacturing process technology	28 nm vs 55 nm
Thermal Design Power (TDP)	45 Watt vs 110 Watt
Maximum memory size	2 GB vs 2x 512 MB
Benchmarks
PassMark - G3D Mark	2521 vs 478
PassMark - G2D Mark	225 vs 187

Reasons to consider the ATI Mobility Radeon HD 3870 X2

5.8x more texture fill rate: 2x 10.56 GTexel / s billion / sec vs 36.08 GTexel / s

Texture fill rate	2x 10.56 GTexel / s billion / sec vs 36.08 GTexel / s

Compare benchmarks

GPU 1: NVIDIA GeForce GTX 850M
GPU 2: ATI Mobility Radeon HD 3870 X2

PassMark - G3D Mark

GPU 1

GPU 2

2521

478

PassMark - G2D Mark

GPU 1

GPU 2

225

187

Name	NVIDIA GeForce GTX 850M	ATI Mobility Radeon HD 3870 X2
PassMark - G3D Mark	2521	478
PassMark - G2D Mark	225	187
Geekbench - OpenCL	9809
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	37.761
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	388.248
CompuBench 1.5 Desktop - T-Rex (Frames/s)	2.428
CompuBench 1.5 Desktop - Video Composition (Frames/s)	38.889
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	151.016
GFXBench 4.0 - Car Chase Offscreen (Frames)	3817
GFXBench 4.0 - Manhattan (Frames)	3685
GFXBench 4.0 - T-Rex (Frames)	3353
GFXBench 4.0 - Car Chase Offscreen (Fps)	3817
GFXBench 4.0 - Manhattan (Fps)	3685
GFXBench 4.0 - T-Rex (Fps)	3353
3DMark Fire Strike - Graphics Score	979

Compare specifications (specs)

	NVIDIA GeForce GTX 850M	ATI Mobility Radeon HD 3870 X2
Essentials
Architecture	Maxwell	TeraScale
Code name	GM107	M88
Launch date	12 March 2014	1 September 2008
Place in performance rating	896	897
Type	Laptop	Laptop
Technical info
CUDA cores	640
Floating-point performance	1,155 gflops	2x 422.4 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	640	640
Texture fill rate	36.08 GTexel / s	2x 10.56 GTexel / s billion / sec
Thermal Design Power (TDP)	45 Watt	110 Watt
Transistor count	1,870 million	666 million
Core clock speed		660 MHz
Video outputs and ports
7.1 channel HD audio on HDMI
Display Connectors	No outputs	No outputs
DisplayPort Multimode (DP++) support	Up to 3840x2160
eDP 1.2 signal support	Up to 3840x2160
HDCP content protection
HDMI
LVDS signal support	Up to 1920x1200
TrueHD and DTS-HD audio bitstreaming
VGA аnalog display support	Up to 2048x1536
Compatibility, dimensions and requirements
Bus support	PCI Express 2.0, PCI Express 3.0
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Laptop size	medium sized	large
API support
DirectX	12.0 (11_0)	10.1
OpenCL	1.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	2 GB	2x 512 MB
Memory bandwidth	80.0 GB / s	2x 54.4 GB / s
Memory bus width	128 Bit	256 Bit
Memory type	DDR3, GDDR5	GDDR3
Shared memory	0	0
Standard memory configuration	DDR3 or GDDR5
Memory clock speed		1700 MHz
Technologies
3D Blu-Ray
Adaptive VSync
Ansel
BatteryBoost
CUDA
Direct Compute
FXAA
GeForce Experience
GeForce ShadowPlay
GPU Boost
H.264, VC1, MPEG2 1080p video decoder
Optimus
SLI
TXAA