AMD Radeon Instinct MI325X vs AMD Radeon RX 6600

VS

AMD Radeon Instinct MI325X

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 288GB VRAM Radeon Instinct MI325X and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI325X 's Advantages

Released 3 years late

More VRAM (288GB vs 8GB)

Larger VRAM bandwidth (10.3TB/s vs 224.0GB/s)

17664 additional rendering cores

AMD Radeon RX 6600 's Advantages

Boost Clock has increased by 19% (2491MHz vs 2100MHz)

Lower TDP (132W vs 750W)

Score

Benchmark

FP32 (float)

Radeon Instinct MI325X +815%

81.72 TFLOPS

Radeon RX 6600

8.928 TFLOPS

Radeon Instinct MI325X

VS

Radeon RX 6600

Graphics Card

Oct 2024

Release Date

Oct 2021

Radeon Instinct(MIx)

Generation

Navi II

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1000 MHz

Base Clock

1626 MHz

2100 MHz

Boost Clock

2491 MHz

2525 MHz

Memory Clock

1750 MHz

Memory

288GB

Memory Size

8GB

HBM3e

Memory Type

GDDR6

8192bit

Memory Bus

128bit

10.3TB/s

Bandwidth

224.0GB/s

Render Config

304

Compute Units

28

-

19456

Shading Units

1792

1216

TMUs

112

0

ROPs

64

1216

Tensor Cores

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

16 MB

L2 Cache

2 MB

256 MB

L3 Cache

32 MB

Theoretical Performance

0 MPixel/s

Pixel Rate

159.4 GPixel/s

2554 GTexel/s

Texture Rate

279.0 GTexel/s

653.7 TFLOPS

FP16 (half)

17.86 TFLOPS

81.72 TFLOPS

FP32 (float)

8.928 TFLOPS

81.72 TFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

750W

TDP

132W

1150 W

Suggested PSU

300 W

No outputs

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Aqua Vanjaram

GPU Name

Navi 23

-

GPU Variant

Navi 23 XL (215-130000016)

CDNA 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

153 billion

Transistors

11.06 billion

1017 mm²

Die Size

237 mm²

Graphics Features

N/A

DirectX

12 Ultimate (12_2)

N/A

OpenGL

4.6

3.0

OpenCL

2.1

N/A

Vulkan

1.3

-

N/A

Shader Model

6.5

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