AMD Radeon HD 6625M vs NVIDIA GeForce GT 420M

VS

AMD Radeon HD 6625M

NVIDIA GeForce GT 420M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6625M and 512MB VRAM GeForce GT 420M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6625M 's Advantages

More VRAM (1024GB vs 512GB)

384 additional rendering cores

NVIDIA GeForce GT 420M 's Advantages

Lower TDP (23W vs 26W)

Score

Benchmark

FP32 (float)

Radeon HD 6625M +125%

0.432 TFLOPS

GeForce GT 420M

0.192 TFLOPS

Radeon HD 6625M

VS

GeForce GT 420M

Graphics Card

Jan 2011

Release Date

Sep 2010

Vancouver

Generation

GeForce 400M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

DDR3

128bit

Memory Bus

128bit

25.60GB/s

Bandwidth

25.60GB/s

Render Config

6

Compute Units

-

SM Count

2

480

Shading Units

96

24

TMUs

16

8

ROPs

4

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

3.600 GPixel/s

Pixel Rate

2.000 GPixel/s

10.80 GTexel/s

Texture Rate

8.000 GTexel/s

-

432.0 GFLOPS

FP32 (float)

192.0 GFLOPS

-

FP64 (double)

16.00 GFLOPS

Board Design

26W

TDP

23W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Whistler

GPU Name

GF108

Whistler LP

GPU Variant

N11P-GE-A1

TeraScale 2

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

0.585 billion

104 mm²

Die Size

116 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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