AMD Radeon RX 6600S vs NVIDIA GeForce 8400M GT

VS

AMD Radeon RX 6600S NVIDIA GeForce 8400M GT

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 512MB VRAM GeForce 8400M GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 14 years and 8 months late

Boost Clock2000MHz

Larger VRAM bandwidth (224.0GB/s vs 19.20GB/s)

1776 additional rendering cores

NVIDIA GeForce 8400M GT 's Advantages

Lower TDP (14W vs 80W)

Score

Benchmark

FP32 (float)

Radeon RX 6600S +24617%

7.168 TFLOPS

GeForce 8400M GT

0.029 TFLOPS

Radeon RX 6600S

VS

GeForce 8400M GT

Graphics Card

Jan 2022

Release Date

May 2007

Mobility Radeon

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1700 MHz

Base Clock

-

2000 MHz

Boost Clock

-

1750 MHz

Memory Clock

600 MHz

Memory

4GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

19.20GB/s

Render Config

-

SM Count

2

28

Compute Units

-

1792

Shading Units

16

112

TMUs

8

64

ROPs

4

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

32 KB

Theoretical Performance

128.0 GPixel/s

Pixel Rate

1.800 GPixel/s

224.0 GTexel/s

Texture Rate

3.600 GTexel/s

14.34 TFLOPS

FP16 (half)

-

7.168 TFLOPS

FP32 (float)

28.80 GFLOPS

448.0 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 23

GPU Name

G86

-

GPU Variant

G86-603-A2

RDNA 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

7 nm

Process Size

80 nm

11.06 billion

Transistors

0.21 billion

237 mm²

Die Size

127 mm²

Board Design

80W

TDP

14W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

1.1

6.5

Shader Model

4.0

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