AMD Radeon RX 6800 vs NVIDIA RTX A4000H

VS

AMD Radeon RX 6800

NVIDIA RTX A4000H

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 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 6800 's Advantages

Boost Clock has increased by 35% (2105MHz vs 1560MHz)

Larger VRAM bandwidth (512.0GB/s vs 448.0GB/s)

NVIDIA RTX A4000H 's Advantages

Released 6 months late

2304 additional rendering cores

Lower TDP (140W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800

16.17 TFLOPS

RTX A4000H +18%

19.17 TFLOPS

Radeon RX 6800

VS

RTX A4000H

Graphics Card

Oct 2020

Release Date

Apr 2021

Navi II

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1700 MHz

Base Clock

735 MHz

2105 MHz

Boost Clock

1560 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

448.0GB/s

Render Config

60

Compute Units

-

SM Count

48

3840

Shading Units

6144

240

TMUs

192

96

ROPs

96

-

Tensor Cores

192

60

RT Cores

48

128 KB per Array

L1 Cache

128 KB (per SM)

4 MB

L2 Cache

4 MB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

149.8 GPixel/s

505.2 GTexel/s

Texture Rate

299.5 GTexel/s

32.33 TFLOPS

FP16 (half)

19.17 TFLOPS

16.17 TFLOPS

FP32 (float)

19.17 TFLOPS

1010 GFLOPS

FP64 (double)

299.5 GFLOPS

Board Design

250W

TDP

140W

600 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 Processor

Navi 21

GPU Name

GA104

Navi 21 XL (215-121000187)

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

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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