AMD Radeon RX 6600S vs NVIDIA RTX A4000 Max-Q

VS

AMD Radeon RX 6600S NVIDIA RTX A4000 Max-Q

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 8GB VRAM RTX A4000 Max Q to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 9 months late

Boost Clock has increased by 43% (2000MHz vs 1395MHz)

NVIDIA RTX A4000 Max-Q 's Advantages

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (352.0GB/s vs 224.0GB/s)

3328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600S

7.168 TFLOPS

RTX A4000 Max Q +99%

14.28 TFLOPS

Radeon RX 6600S

VS

RTX A4000 Max Q

Graphics Card

Jan 2022

Release Date

Apr 2021

Mobility Radeon

Generation

Quadro Ampere-M

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1700 MHz

Base Clock

780 MHz

2000 MHz

Boost Clock

1395 MHz

1750 MHz

Memory Clock

1375 MHz

Memory

4GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

352.0GB/s

Render Config

-

SM Count

40

28

Compute Units

-

1792

Shading Units

5120

112

TMUs

160

64

ROPs

80

-

Tensor Cores

160

28

RT Cores

40

128 KB per Array

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

4 MB

Theoretical Performance

128.0 GPixel/s

Pixel Rate

111.6 GPixel/s

224.0 GTexel/s

Texture Rate

223.2 GTexel/s

14.34 TFLOPS

FP16 (half)

14.28 TFLOPS

7.168 TFLOPS

FP32 (float)

14.28 TFLOPS

448.0 GFLOPS

FP64 (double)

223.2 GFLOPS

Graphics Processor

Navi 23

GPU Name

GA104

-

GPU Variant

-

RDNA 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

7 nm

Process Size

8 nm

11.06 billion

Transistors

17.4 billion

237 mm²

Die Size

392 mm²

Board Design

80W

TDP

80W

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.6

6.5

Shader Model

6.7

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