NVIDIA RTX A4000H vs AMD Radeon RX 6650 XT

VS

NVIDIA RTX A4000H

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 16GB VRAM RTX A4000H and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000H 's Advantages

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (448.0GB/s vs 280.3GB/s)

4096 additional rendering cores

Lower TDP (140W vs 176W)

AMD Radeon RX 6650 XT 's Advantages

Released 1 years and 1 months late

Boost Clock has increased by 69% (2635MHz vs 1560MHz)

Score

Benchmark

FP32 (float)

RTX A4000H +77%

19.17 TFLOPS

Radeon RX 6650 XT

10.79 TFLOPS

RTX A4000H

VS

Radeon RX 6650 XT

Graphics Card

Apr 2021

Release Date

May 2022

Quadro Ampere

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

735 MHz

Base Clock

2055 MHz

1560 MHz

Boost Clock

2635 MHz

1750 MHz

Memory Clock

2190 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

128bit

448.0GB/s

Bandwidth

280.3GB/s

Render Config

-

Compute Units

32

48

SM Count

-

6144

Shading Units

2048

192

TMUs

128

96

ROPs

64

192

Tensor Cores

-

48

RT Cores

32

128 KB (per SM)

L1 Cache

128 KB per Array

4 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

168.6 GPixel/s

299.5 GTexel/s

Texture Rate

337.3 GTexel/s

19.17 TFLOPS

FP16 (half)

21.59 TFLOPS

19.17 TFLOPS

FP32 (float)

10.79 TFLOPS

299.5 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

140W

TDP

176W

300 W

Suggested PSU

450 W

4x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

GA104

GPU Name

Navi 23

GA104-???-A1

GPU Variant

Navi 23 KXT (215-130000136)

Ampere

Architecture

RDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

17.4 billion

Transistors

11.06 billion

392 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.6

CUDA

-

6.7

Shader Model

6.5

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