NVIDIA GeForce RTX 4090 Ti vs AMD Instinct MI300X

VS

NVIDIA GeForce RTX 4090 Ti AMD Instinct MI300X

We compared a Desktop platform GPU: 24GB VRAM GeForce RTX 4090 Ti and a Professional market GPU: 192GB VRAM AMD Instinct MI300X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Ti 's Advantages

Boost Clock has increased by 22% (2565MHz vs 2100MHz)

Lower TDP (600W vs 750W)

AMD Instinct MI300X 's Advantages

More VRAM (192GB vs 24GB)

Larger VRAM bandwidth (5300GB/s vs 1152GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti

93.24 TFLOPS

AMD Instinct MI300X +75%

163.4 TFLOPS

GeForce RTX 4090 Ti

VS

AMD Instinct MI300X

Graphics Card

Unknown

Release Date

Dec 2023

GeForce 40

Generation

Instinct

Desktop

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

2325 MHz

Base Clock

1000 MHz

2565 MHz

Boost Clock

2100 MHz

1500 MHz

Memory Clock

5200 MHz

Memory

24GB

Memory Size

192GB

GDDR6X

Memory Type

HBM3

384bit

Memory Bus

8192bit

1152GB/s

Bandwidth

5300GB/s

Render Config

142

SM Count

-

Compute Units

304

18176

Shading Units

19456

568

TMUs

880

192

ROPs

0

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

96 MB

L2 Cache

16 MB

Theoretical Performance

492.5 GPixel/s

Pixel Rate

0 MPixel/s

1457 GTexel/s

Texture Rate

1496 GTexel/s

93.24 TFLOPS

FP16 (half)

1300 TFLOPS

93.24 TFLOPS

FP32 (float)

163.4 TFLOPS

1457 GFLOPS

FP64 (double)

81.7 TFLOPS

Graphics Processor

AD102

GPU Name

MI300

AD102-400-A1

GPU Variant

-

Ada Lovelace

Architecture

CDNA 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

76.3 billion

Transistors

146 billion

609 mm²

Die Size

1017 mm²

Board Design

600W

TDP

750W

1000 W

Suggested PSU

1000 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

No outputs

2x 16-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

N/A

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