AMD Radeon R6 M255DX vs NVIDIA GeForce GT 640

Comparative analysis of AMD Radeon R6 M255DX and NVIDIA GeForce GT 640 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: Geekbench - OpenCL, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), PassMark - G2D Mark, PassMark - G3D Mark, 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), 3DMark Fire Strike - Graphics Score.

 

Differences

Reasons to consider the AMD Radeon R6 M255DX

  • Videocard is newer: launch date 1 year(s) 7 month(s) later
  • Around 50% higher pipelines: 576 vs 384
  • 4.6x better performance in Geekbench - OpenCL: 17123 vs 3736
  • Around 7% better performance in GFXBench 4.0 - T-Rex (Frames): 3563 vs 3328
  • Around 7% better performance in GFXBench 4.0 - T-Rex (Fps): 3563 vs 3328
Specifications (specs)
Launch date 7 January 2014 vs 5 June 2012
Pipelines 576 vs 384
Benchmarks
Geekbench - OpenCL 17123 vs 3736
GFXBench 4.0 - T-Rex (Frames) 3563 vs 3328
GFXBench 4.0 - T-Rex (Fps) 3563 vs 3328

Reasons to consider the NVIDIA GeForce GT 640

  • Around 16% higher core clock speed: 902 MHz vs 780 MHz
  • 2x better performance in GFXBench 4.0 - Car Chase Offscreen (Frames): 2134 vs 1055
  • 2x better performance in GFXBench 4.0 - Car Chase Offscreen (Fps): 2134 vs 1055
  • Around 23% better performance in GFXBench 4.0 - Manhattan (Frames): 2375 vs 1927
  • Around 23% better performance in GFXBench 4.0 - Manhattan (Fps): 2375 vs 1927
  • 2.5x better performance in PassMark - G2D Mark: 293 vs 116
  • Around 94% better performance in PassMark - G3D Mark: 1176 vs 605
Specifications (specs)
Core clock speed 902 MHz vs 780 MHz
Benchmarks
GFXBench 4.0 - Car Chase Offscreen (Frames) 2134 vs 1055
GFXBench 4.0 - Car Chase Offscreen (Fps) 2134 vs 1055
GFXBench 4.0 - Manhattan (Frames) 2375 vs 1927
GFXBench 4.0 - Manhattan (Fps) 2375 vs 1927
PassMark - G2D Mark 293 vs 116
PassMark - G3D Mark 1176 vs 605

Compare benchmarks

GPU 1: AMD Radeon R6 M255DX
GPU 2: NVIDIA GeForce GT 640

Geekbench - OpenCL
GPU 1
GPU 2
17123
3736
GFXBench 4.0 - Car Chase Offscreen (Frames)
GPU 1
GPU 2
1055
2134
GFXBench 4.0 - Car Chase Offscreen (Fps)
GPU 1
GPU 2
1055
2134
GFXBench 4.0 - Manhattan (Frames)
GPU 1
GPU 2
1927
2375
GFXBench 4.0 - Manhattan (Fps)
GPU 1
GPU 2
1927
2375
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3563
3328
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3563
3328
PassMark - G2D Mark
GPU 1
GPU 2
116
293
PassMark - G3D Mark
GPU 1
GPU 2
605
1176
Name AMD Radeon R6 M255DX NVIDIA GeForce GT 640
Geekbench - OpenCL 17123 3736
GFXBench 4.0 - Car Chase Offscreen (Frames) 1055 2134
GFXBench 4.0 - Car Chase Offscreen (Fps) 1055 2134
GFXBench 4.0 - Manhattan (Frames) 1927 2375
GFXBench 4.0 - Manhattan (Fps) 1927 2375
GFXBench 4.0 - T-Rex (Frames) 3563 3328
GFXBench 4.0 - T-Rex (Fps) 3563 3328
PassMark - G2D Mark 116 293
PassMark - G3D Mark 605 1176
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 11.448
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 206.777
CompuBench 1.5 Desktop - T-Rex (Frames/s) 0.792
CompuBench 1.5 Desktop - Video Composition (Frames/s) 14.637
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 20.86
3DMark Fire Strike - Graphics Score 1565

Compare specifications (specs)

AMD Radeon R6 M255DX NVIDIA GeForce GT 640

Essentials

Architecture GCN 1.0 Kepler
Code name Jet GK107
Launch date 7 January 2014 5 June 2012
Place in performance rating 1197 1200
Type Laptop Desktop
Launch price (MSRP) $99
Price now $59.99
Value for money (0-100) 25.25

Technical info

Boost clock speed 855 MHz
Core clock speed 780 MHz 902 MHz
Manufacturing process technology 28 nm 28 nm
Pipelines 576 384
Transistor count 1,040 million 1,270 million
Floating-point performance 692.7 gflops
Texture fill rate 28.86 GTexel / s
Thermal Design Power (TDP) 65 Watt

Video outputs and ports

Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort

Compatibility, dimensions and requirements

Interface IGP PCIe 3.0 x16
Laptop size medium sized
Length 145 mm
Supplementary power connectors None

API support

DirectX 12.0 (11_1) 12.0 (11_0)
OpenGL 4.5 4.6

Memory

Memory type DDR3 DDR3
Shared memory 1
Maximum RAM amount 2 GB
Memory bandwidth 28.51 GB / s
Memory bus width 128 Bit
Memory clock speed 1782 MHz

Technologies

AMD Eyefinity
AppAcceleration
Enduro
Powerplay