NVIDIA GeForce GT 420M vs AMD Radeon 625 Mobile

VS

NVIDIA GeForce GT 420M

AMD Radeon 625 Mobile

We compared two Mobile platform GPUs: 512MB VRAM GeForce GT 420M and 2GB VRAM Radeon 625 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 420M 's Advantages

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

Lower TDP (23W vs 50W)

AMD Radeon 625 Mobile 's Advantages

Released 8 years and 8 months late

Boost Clock1024MHz

More VRAM (2GB vs 512GB)

288 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 420M

0.192 TFLOPS

Radeon 625 Mobile +309%

0.786 TFLOPS

GeForce GT 420M

VS

Radeon 625 Mobile

Graphics Card

Sep 2010

Release Date

May 2019

GeForce 400M

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

1024 MHz

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

DDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

14.40GB/s

Render Config

-

Compute Units

6

2

SM Count

-

96

Shading Units

384

16

TMUs

24

4

ROPs

8

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

8.192 GPixel/s

8.000 GTexel/s

Texture Rate

24.58 GTexel/s

-

FP16 (half)

786.4 GFLOPS

192.0 GFLOPS

FP32 (float)

786.4 GFLOPS

16.00 GFLOPS

FP64 (double)

49.15 GFLOPS

Board Design

23W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

GF108

GPU Name

Polaris 24

N11P-GE-A1

GPU Variant

Polaris 24 XT (216-0867030)

Fermi

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.585 billion

Transistors

1.55 billion

116 mm²

Die Size

125 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

6.3

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