NVIDIA GeForce 825M vs NVIDIA GeForce GT 420M

VS

NVIDIA GeForce 825M

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM GeForce 825M and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 825M 's Advantages

Released 3 years and 4 months late

Boost Clock941MHz

More VRAM (1024GB vs 512GB)

288 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)

Lower TDP (23W vs 33W)

Score

Benchmark

FP32 (float)

GeForce 825M +276%

0.723 TFLOPS

GeForce GT 420M

0.192 TFLOPS

GeForce 825M

VS

GeForce GT 420M

Graphics Card

Jan 2014

Release Date

Sep 2010

GeForce 800M

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

941 MHz

Boost Clock

-

900 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

2

384

Shading Units

96

32

TMUs

16

8

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

7.528 GPixel/s

Pixel Rate

2.000 GPixel/s

30.11 GTexel/s

Texture Rate

8.000 GTexel/s

-

722.7 GFLOPS

FP32 (float)

192.0 GFLOPS

30.11 GFLOPS

FP64 (double)

16.00 GFLOPS

Board Design

33W

TDP

23W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK208

GPU Name

GF108

-

GPU Variant

N11P-GE-A1

Kepler 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.02 billion

Transistors

0.585 billion

87 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

2.1

5.1

Shader Model

5.1

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