GeForce GT 420M 

Released September, 2010
  • 500 MHz
  • 512 MB DDR3
6.8 Out of 10

We're not sure exactly how this is done, but it's essentially a GPU version of the Turbo Boost and Turbo Core technologies we've seen from Intel and AMD CPUs for some time.
by Dustin-Sklavos (Mar, 2012)
Built around a 42-in LG AH-IPS panel, the Wasabi Mango UHD420 is an impressive display.
by Ken-Addison (Jul, 2015)

GPUBoss Review Our evaluation of the GeForce GT 420M among Laptop GPUs under 35W TDP

Gaming

GeForce GT 420M
n.d.
Battlefield 3, Battlefield 4, Bioshock Infinite and 21 more

Graphics

GeForce GT 420M
7.7
T-Rex, Manhattan and Cloud Gate Factor

Computing

GeForce GT 420M
5.6
Face Detection, Ocean Surface Simulation and 3 more

Performance per Watt

GeForce GT 420M
7.4
Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Value

GeForce GT 420M
n.d.
Battlefield 3, Battlefield 4, Bioshock Infinite and 30 more

Noise and Power

GeForce GT 420M
7.1
TDP, Idle Power Consumption, Load Power Consumption and 2 more

6.8

Overall Score

GeForce GT 420M
6.8

Benchmarks Real world tests of the GeForce GT 420M

Bitcoin mining Data courtesy CompuBench

GeForce GT 420M
8.1 mHash/s
GeForce 940MX
103.76 mHash/s

Face detection Data courtesy CompuBench

GeForce GT 420M
4.33 mPixels/s
GeForce 940MX
30.06 mPixels/s

Ocean surface simulation Data courtesy CompuBench

GeForce GT 420M
162.16 frames/s
GeForce 940MX
384.8 frames/s

Particle simulation Data courtesy CompuBench

GeForce GT 420M
33.2 mInteraction/s
GeForce 940MX
342.24 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

GeForce GT 420M
0.43 frames/s
GeForce 940MX
2.04 frames/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 420M
2,936.79
GeForce 940MX
3,357.58

Manhattan (GFXBench 3.0) Data courtesy CompuBench

GeForce GT 420M
1,997.16
GeForce 940MX
3,681.82

Sky Diver Factor Data courtesy FutureMark

GeForce GT 420M
54.53
GeForce 940MX
169.65

In The News From around the web

The 60 Hz limit is common to basically all 4K displays on the market today and a VRR / FreeSync range of only 18 Hz would initially seem useless.
Built around a 42-in LG AH-IPS panel, the Wasabi Mango UHD420 is an impressive display.
A GM204 Quadro K6000 replacement, would be perfect for Nvidia’s value chain, unless they decide to go with GM200 directly.
Here is an example, the mobile variants usually have the m suffix, so the technically correct naming of a randomly chosen Maxwell card would be Quadro M2200m but that is semantic redundancy and would be marketing folly.
First among these will be Qualcomm, who will be using the backdrop of the I/O conference to celebrate the launch of their latest high-performance SoC-class GPU, the Adreno 420.
The low power nature of mobile devices and the SoCs that power them means that while Qualcomm can’t match the performance of the larger desktop GPUs, Adreno 420 will be a big step up from the performance offered by the older Adreno 330 GPU.
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Specifications Full list of technical specs

gpu

GPU brand Nvidia
GPU name GF108
Market Laptop
Clock speed 500 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 96
Texture mapping units 16
Render output processors 4
Pixel rate 4 GPixel/s
Texture rate 16 GTexel/s
Floating-point performance 192 GFLOPS

memory

Memory clock speed 800 MHz
Effective memory clock speed 1,600 MHz
Memory bus 128 bit
Memory 512 MB
Memory type DDR3
Memory bandwidth 25.6 GB/s

noise and power

TDP 23W
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