AMD Radeon RX 6800 XT vs NVIDIA DGX Spark (MediaTek AHJ11488B)

GPU · Specs Compare

GPU AMD Radeon RX 6800 XT AMD · 2020-10

GPU NVIDIA DGX Spark (MediaTek AHJ11488B) NVIDIA · 2025-10

Graphics Card

Release Date

Oct 2020

—

Generation

Navi II

—

Type

Desktop

—

Bus Interface

PCIe 4.0 x16

—

Clock Speeds

Base Clock

1825 MHz

—

Boost Clock

2250 MHz

—

Memory Clock

2000 MHz

—

Memory

Memory Size

16GB

—

Memory Type

GDDR6

—

Memory Bus

256bit

—

Bandwidth

512.0GB/s

—

Render Config

Compute Units

—

Shading Units

4608

—

TMUs

288

—

ROPs

128

—

RT Cores

—

L1 Cache

128 KB per Array

—

L2 Cache

4 MB

—

L3 Cache

128 MB

—

Theoretical Performance

Pixel Rate

288.0 GPixel/s

—

Texture Rate

648.0 GTexel/s

—

FP16 (half)

41.47 TFLOPS

—

FP32 (float)

20.74 TFLOPS

—

FP64 (double)

1296 GFLOPS

—

Graphics Processor

GPU Name

Navi 21

—

GPU Variant

Navi 21 XT(215-121000177)

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Architecture

RDNA 2.0

—

Foundry

TSMC

—

Process Size

7 nm

—

Transistors

26.8 billion

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Die Size

520 mm²

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Board Design

TDP

300W

—

Suggested PSU

700 W

—

Outputs

1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C

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Power Connectors

2x 8-pin

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Graphics Features

DirectX

12 Ultimate (12_2)

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OpenGL

4.6

—

OpenCL

2.1

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Vulkan

1.3

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Shader Model

6.5

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General Parameters

Release Date

—

Oct 2025

Type

—

Laptop

Core Architecture

—

N1X

Integrated Graphics

—

GB20B "Blackwell"

Generation

—

RTX Spark (GB10 (N1X))

Package

Manufacturing Process

—

3 nm

Power Consumption

—

140 W

Foundry

—

TSMC

Die Size

—

208 mm²

Package

—

FC-BGA

CPU Performance

Performance Core Base Frequency

—

2.8 GHz

Performance Core Turbo Frequency

—

4 GHz

Efficiency Core Base Frequency

—

1.5 GHz

Efficiency Core Turbo Frequency

—

2.8 GHz

Total Core Count

—

Total Thread Count

—

Bus Frequency

—

100 MHz

Multiplier

—

28.0

L1 Cache

—

128 KB per core

L2 Cache

—

2 MB per core

L3 Cache

—

8 MB shared

Unlocked Multiplier

—

SMP

—

Memory Parameters

Memory Types

—

LPDDR5X-8533

Max Memory Channels

—

Max Memory Bandwidth

—

273.1 GB/s

ECC Memory Support

—

Miscellaneous

PCIe Version

—

Benchmark

3DMark Time Spy

19,329

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▲ Specs Compare Data sourced from official specifications and benchmark tests.