AMD Radeon RX 6900 XTX vs NVIDIA RTX A4000H

VS

AMD Radeon RX 6900 XTX NVIDIA RTX A4000H

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 16GB VRAM RTX A4000H to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 56% (2435MHz vs 1560MHz)

Larger VRAM bandwidth (576.0GB/s vs 448.0GB/s)

NVIDIA RTX A4000H 's Advantages

1024 additional rendering cores

Lower TDP (140W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +30%

24.93 TFLOPS

RTX A4000H

19.17 TFLOPS

Radeon RX 6900 XTX

VS

RTX A4000H

Graphics Card

Unknown

Release Date

Apr 2021

Navi II

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2075 MHz

Base Clock

735 MHz

2435 MHz

Boost Clock

1560 MHz

2250 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

448.0GB/s

Render Config

-

SM Count

48

80

Compute Units

-

5120

Shading Units

6144

320

TMUs

192

128

ROPs

96

-

Tensor Cores

192

80

RT Cores

48

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

4 MB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

149.8 GPixel/s

779.2 GTexel/s

Texture Rate

299.5 GTexel/s

49.87 TFLOPS

FP16 (half)

19.17 TFLOPS

24.93 TFLOPS

FP32 (float)

19.17 TFLOPS

1.558 TFLOPS

FP64 (double)

299.5 GFLOPS

Graphics Processor

Navi 21

GPU Name

GA104

Navi 21 XTXH (215-121000247)

GPU Variant

GA104-???-A1

RDNA 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

7 nm

Process Size

8 nm

26.8 billion

Transistors

17.4 billion

520 mm²

Die Size

392 mm²

Board Design

330W

TDP

140W

700 W

Suggested PSU

300 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

4x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 6-pin

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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