NVIDIA RTX A4000H vs AMD Radeon RX 6800

VS

We compared two Desktop platform GPUs: 16GB VRAM RTX A4000H and 16GB VRAM Radeon RX 6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000H 's Advantages

Released 6 months late

2304 additional rendering cores

Lower TDP (140W vs 250W)

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)

Score

Benchmark

FP32 (float)

RTX A4000H +18%

19.17 TFLOPS

Radeon RX 6800

16.17 TFLOPS

RTX A4000H

VS

Radeon RX 6800

Graphics Card

Apr 2021

Release Date

Oct 2020

Quadro Ampere

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

735 MHz

Base Clock

1700 MHz

1560 MHz

Boost Clock

2105 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

256bit

Memory Bus

256bit

448.0GB/s

Bandwidth

512.0GB/s

Render Config

48

SM Count

-

Compute Units

60

6144

Shading Units

3840

192

TMUs

240

96

ROPs

96

192

Tensor Cores

-

48

RT Cores

60

128 KB (per SM)

L1 Cache

128 KB per Array

4 MB

L2 Cache

4 MB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

202.1 GPixel/s

299.5 GTexel/s

Texture Rate

505.2 GTexel/s

19.17 TFLOPS

FP16 (half)

32.33 TFLOPS

19.17 TFLOPS

FP32 (float)

16.17 TFLOPS

299.5 GFLOPS

FP64 (double)

1010 GFLOPS

Graphics Processor

GA104

GPU Name

Navi 21

GA104-???-A1

GPU Variant

Navi 21 XL (215-121000187)

Ampere

Architecture

RDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

17.4 billion

Transistors

26.8 billion

392 mm²

Die Size

520 mm²

Board Design

140W

TDP

250W

300 W

Suggested PSU

600 W

4x DisplayPort 1.4a

Outputs

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

1x 6-pin

Power Connectors

2x 8-pin

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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