AMD Radeon RX 6800 XT vs AMD Radeon Instinct MI325X

VS

AMD Radeon RX 6800 XT

AMD Radeon Instinct MI325X

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 288GB VRAM Radeon Instinct MI325X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Boost Clock has increased by 7% (2250MHz vs 2100MHz)

Lower TDP (300W vs 750W)

AMD Radeon Instinct MI325X 's Advantages

Released 4 years late

More VRAM (288GB vs 16GB)

Larger VRAM bandwidth (10.3TB/s vs 512.0GB/s)

14848 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT

20.74 TFLOPS

Radeon Instinct MI325X +294%

81.72 TFLOPS

Radeon RX 6800 XT

VS

Radeon Instinct MI325X

Graphics Card

Oct 2020

Release Date

Oct 2024

Navi II

Generation

Radeon Instinct(MIx)

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

1825 MHz

Base Clock

1000 MHz

2250 MHz

Boost Clock

2100 MHz

2000 MHz

Memory Clock

2525 MHz

Memory

16GB

Memory Size

288GB

GDDR6

Memory Type

HBM3e

256bit

Memory Bus

8192bit

512.0GB/s

Bandwidth

10.3TB/s

Render Config

72

Compute Units

304

-

4608

Shading Units

19456

288

TMUs

1216

128

ROPs

0

-

Tensor Cores

1216

72

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

16 MB

128 MB

L3 Cache

256 MB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

0 MPixel/s

648.0 GTexel/s

Texture Rate

2554 GTexel/s

41.47 TFLOPS

FP16 (half)

653.7 TFLOPS

20.74 TFLOPS

FP32 (float)

81.72 TFLOPS

1296 GFLOPS

FP64 (double)

81.72 TFLOPS

Board Design

300W

TDP

750W

700 W

Suggested PSU

1150 W

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

Outputs

No outputs

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

Aqua Vanjaram

Navi 21 XT (215-121000177)

GPU Variant

-

RDNA 2.0

Architecture

CDNA 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

26.8 billion

Transistors

153 billion

520 mm²

Die Size

1017 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

2.1

OpenCL

3.0

1.3

Vulkan

N/A

-

6.5

Shader Model

N/A

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