Home / GPU Comparison / AMD Instinct MI300X Accelerator or NVIDIA GeForce RTX 5090: What's better?

AMD Instinct MI300X Accelerator

vs

NVIDIA GeForce RTX 5090

GPU Comparison Result

Below are the results of a comparison of AMD Instinct MI300X Accelerator and NVIDIA GeForce RTX 5090 video cards based on key performance characteristics, as well as power consumption and much more.

Advantages

AMD Instinct MI300X Accelerator

Larger Memory Size: 192GB (192GB vs 28GB)
Higher Bandwidth: 5300 GB/s (5300 GB/s vs 280.0GB/s)

NVIDIA GeForce RTX 5090

Higher Boost Clock: 2520 MHz (2100MHz vs 2520 MHz)
More Shading Units: 20480 (19456 vs 20480)
Newer Launch Date: January 2025 (December 2023 vs January 2025)

Basic

AMD

Label Name

NVIDIA

December 2023

Launch Date

January 2025

Desktop

Platform

Desktop

Instinct MI300X

Model Name

GeForce RTX 5090

Instinct

Generation

GeForce 50

1000MHz

Base Clock

2235 MHz

2100MHz

Boost Clock

2520 MHz

PCIe 5.0 x16

Bus Interface

PCIe 5.0 x16

Transistors

Unknown

RT Cores

160

Tensor Cores

Tensor Cores are specialized processing units designed specifically for deep learning, providing higher training and inference performance compared to FP32 training. They enable rapid computations in areas such as computer vision, natural language processing, speech recognition, text-to-speech conversion, and personalized recommendations. The two most notable applications of Tensor Cores are DLSS (Deep Learning Super Sampling) and AI Denoiser for noise reduction.

640

TMUs

Texture Mapping Units (TMUs) serve as components of the GPU, which are capable of rotating, scaling, and distorting binary images, and then placing them as textures onto any plane of a given 3D model. This process is called texture mapping.

640

Foundry

TSMC

Architecture

Blackwell 2.0

Memory Specifications

192GB

Memory Size

28GB

HBM3

Memory Type

GDDR7

8192bit

Memory Bus

The memory bus width refers to the number of bits of data that the video memory can transfer within a single clock cycle. The larger the bus width, the greater the amount of data that can be transmitted instantaneously, making it one of the crucial parameters of video memory. The memory bandwidth is calculated as: Memory Bandwidth = Memory Frequency x Memory Bus Width / 8. Therefore, when the memory frequencies are similar, the memory bus width will determine the size of the memory bandwidth.

448bit

5200MHz

Memory Clock

2500 MHz

5300 GB/s

Bandwidth

Memory bandwidth refers to the data transfer rate between the graphics chip and the video memory. It is measured in bytes per second, and the formula to calculate it is: memory bandwidth = working frequency × memory bus width / 8 bits.

280.0GB/s

Display and Media

Outputs

1x HDMI 2.1
3x DisplayPort 1.4a

Theoretical Performance

Pixel Rate

Pixel fill rate refers to the number of pixels a graphics processing unit (GPU) can render per second, measured in MPixels/s (million pixels per second) or GPixels/s (billion pixels per second). It is the most commonly used metric to evaluate the pixel processing performance of a graphics card.

483.8 GPixel/s

1496 GTexel/s

Texture Rate

Texture fill rate refers to the number of texture map elements (texels) that a GPU can map to pixels in a single second.

1613 GTexel/s

1300 TFLOPS

FP16 (half)

An important metric for measuring GPU performance is floating-point computing capability. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy.

103.2 TFLOPS

81.7 TFLOPS

FP64 (double)

An important metric for measuring GPU performance is floating-point computing capability. Double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy, while single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

1.613 TFLOPS

160.132 TFLOPS

FP32 (float)

An important metric for measuring GPU performance is floating-point computing capability. Single-precision floating-point numbers (32-bit) are used for common multimedia and graphics processing tasks, while double-precision floating-point numbers (64-bit) are required for scientific computing that demands a wide numeric range and high accuracy. Half-precision floating-point numbers (16-bit) are used for applications like machine learning, where lower precision is acceptable.

101.136 TFLOPS

Miscellaneous

SM Count

Multiple Streaming Processors (SPs), along with other resources, form a Streaming Multiprocessor (SM), which is also referred to as a GPU's major core. These additional resources include components such as warp schedulers, registers, and shared memory. The SM can be considered the heart of the GPU, similar to a CPU core, with registers and shared memory being scarce resources within the SM.

160

19456

Shading Units

The most fundamental processing unit is the Streaming Processor (SP), where specific instructions and tasks are executed. GPUs perform parallel computing, which means multiple SPs work simultaneously to process tasks.

20480

16 KB (per CU)

L1 Cache

128 KB (per SM)

16MB

L2 Cache

88 MB

750W

TDP

500W

Vulkan Version

Vulkan is a cross-platform graphics and compute API by Khronos Group, offering high performance and low CPU overhead. It lets developers control the GPU directly, reduces rendering overhead, and supports multi-threading and multi-core processors.

1.3

OpenCL Version

3.0

OpenGL

4.6

CUDA

9.1

DirectX

12 Ultimate (12_2)

Power Connectors

1x 16-pin

ROPs

The Raster Operations Pipeline (ROPs) is primarily responsible for handling lighting and reflection calculations in games, as well as managing effects like anti-aliasing (AA), high resolution, smoke, and fire. The more demanding the anti-aliasing and lighting effects in a game, the higher the performance requirements for the ROPs; otherwise, it may result in a sharp drop in frame rate.

192

Shader Model

6.7

Suggested PSU

900 W