NVIDIA GeForce 840M vs NVIDIA GeForce 705M

Comparative analysis of NVIDIA GeForce 840M and NVIDIA GeForce 705M 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.

 

Differences

Reasons to consider the NVIDIA GeForce 840M

  • Videocard is newer: launch date 5 month(s) later
  • Around 39% higher core clock speed: 1029 MHz vs 738 MHz
  • 3x more texture fill rate: 17.98 GTexel / s vs 5.904 GTexel / s
  • 8x more pipelines: 384 vs 48
  • 6.1x better floating-point performance: 863.2 gflops vs 141.7 gflops
  • 4x more maximum memory size: 4 GB vs 1 GB
  • Around 11% higher memory clock speed: 2002 MHz vs 1800 MHz
  • 2.4x better performance in PassMark - G3D Mark: 1096 vs 456
  • 5x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 22.848 vs 4.569
  • Around 41% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 162.594 vs 115.15
  • 3.3x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.237 vs 0.373
  • 2.7x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 21.15 vs 7.904
  • 8.6x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 95.545 vs 11.055
  • 2.4x better performance in GFXBench 4.0 - Manhattan (Frames): 2736 vs 1131
  • Around 96% better performance in GFXBench 4.0 - T-Rex (Frames): 3191 vs 1629
  • 2.4x better performance in GFXBench 4.0 - Manhattan (Fps): 2736 vs 1131
  • Around 96% better performance in GFXBench 4.0 - T-Rex (Fps): 3191 vs 1629
Specifications (specs)
Launch date 12 March 2014 vs 27 September 2013
Core clock speed 1029 MHz vs 738 MHz
Texture fill rate 17.98 GTexel / s vs 5.904 GTexel / s
Pipelines 384 vs 48
Floating-point performance 863.2 gflops vs 141.7 gflops
Maximum memory size 4 GB vs 1 GB
Memory clock speed 2002 MHz vs 1800 MHz
Benchmarks
PassMark - G3D Mark 1096 vs 456
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 22.848 vs 4.569
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 162.594 vs 115.15
CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.237 vs 0.373
CompuBench 1.5 Desktop - Video Composition (Frames/s) 21.15 vs 7.904
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 95.545 vs 11.055
GFXBench 4.0 - Manhattan (Frames) 2736 vs 1131
GFXBench 4.0 - T-Rex (Frames) 3191 vs 1629
GFXBench 4.0 - Manhattan (Fps) 2736 vs 1131
GFXBench 4.0 - T-Rex (Fps) 3191 vs 1629

Reasons to consider the NVIDIA GeForce 705M

  • 2.2x lower typical power consumption: 15 Watt vs 33 Watt
  • 3x better performance in PassMark - G2D Mark: 455 vs 151
Specifications (specs)
Thermal Design Power (TDP) 15 Watt vs 33 Watt
Benchmarks
PassMark - G2D Mark 455 vs 151

Compare benchmarks

GPU 1: NVIDIA GeForce 840M
GPU 2: NVIDIA GeForce 705M

PassMark - G3D Mark
GPU 1
GPU 2
1096
456
PassMark - G2D Mark
GPU 1
GPU 2
151
455
CompuBench 1.5 Desktop - Face Detection (mPixels/s)
GPU 1
GPU 2
22.848
4.569
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)
GPU 1
GPU 2
162.594
115.15
CompuBench 1.5 Desktop - T-Rex (Frames/s)
GPU 1
GPU 2
1.237
0.373
CompuBench 1.5 Desktop - Video Composition (Frames/s)
GPU 1
GPU 2
21.15
7.904
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)
GPU 1
GPU 2
95.545
11.055
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
2736
1131
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3191
1629
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
2736
1131
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3191
1629
Name NVIDIA GeForce 840M NVIDIA GeForce 705M
PassMark - G3D Mark 1096 456
PassMark - G2D Mark 151 455
Geekbench - OpenCL 5745
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 22.848 4.569
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 162.594 115.15
CompuBench 1.5 Desktop - T-Rex (Frames/s) 1.237 0.373
CompuBench 1.5 Desktop - Video Composition (Frames/s) 21.15 7.904
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 95.545 11.055
GFXBench 4.0 - Car Chase Offscreen (Frames) 2085
GFXBench 4.0 - Manhattan (Frames) 2736 1131
GFXBench 4.0 - T-Rex (Frames) 3191 1629
GFXBench 4.0 - Car Chase Offscreen (Fps) 2085
GFXBench 4.0 - Manhattan (Fps) 2736 1131
GFXBench 4.0 - T-Rex (Fps) 3191 1629
3DMark Fire Strike - Graphics Score 503

Compare specifications (specs)

NVIDIA GeForce 840M NVIDIA GeForce 705M

Essentials

Architecture Maxwell Fermi 2.0
Code name GM108 GF117
Launch date 12 March 2014 27 September 2013
Place in performance rating 1248 1250
Type Laptop Laptop

Technical info

Boost clock speed 1124 MHz
Core clock speed 1029 MHz 738 MHz
Floating-point performance 863.2 gflops 141.7 gflops
Manufacturing process technology 28 nm 28 nm
Pipelines 384 48
Texture fill rate 17.98 GTexel / s 5.904 GTexel / s
Thermal Design Power (TDP) 33 Watt 15 Watt
Transistor count 585 million

Video outputs and ports

Display Connectors No outputs No outputs
7.1 channel HD audio on HDMI
DisplayPort Multimode (DP++) support Up to 2560x1600
eDP 1.2 signal support Up to 2560x1600
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 PCI Express 2.0
Interface PCIe 3.0 x8 PCIe 2.0 x16
Laptop size medium sized

API support

DirectX 12.0 (11_0) 12 API
OpenGL 4.5 4.5
OpenCL 1.1

Memory

Maximum RAM amount 4 GB 1 GB
Memory bandwidth 16.02 GB / s 14.4 GB / s
Memory bus width 64 Bit 64 Bit
Memory clock speed 2002 MHz 1800 MHz
Memory type DDR3 DDR3
Shared memory 0 0
Standard memory configuration DDR3

Technologies

CUDA
GameWorks
GeForce Experience
GPU Boost
Optimus
Blu-Ray 3D Support
Direct Compute
FXAA
H.264, VC1, MPEG2 1080p video decoder