Home / GPU Comparison / AMD Radeon RX 6800 or NVIDIA CMP 90HX: What's better?

AMD Radeon RX 6800

vs

NVIDIA CMP 90HX

GPU Comparison Result

Below are the results of a comparison of AMD Radeon RX 6800 and NVIDIA CMP 90HX video cards based on key performance characteristics, as well as power consumption and much more.

Advantages

AMD Radeon RX 6800

Higher Boost Clock: 2105MHz (2105MHz vs 1710MHz)
Larger Memory Size: 16GB (16GB vs 10GB)

NVIDIA CMP 90HX

Higher Bandwidth: 760.3 GB/s (512.0 GB/s vs 760.3 GB/s)
More Shading Units: 6400 (3840 vs 6400)
Newer Launch Date: July 2021 (October 2020 vs July 2021)

Basic

AMD

Label Name

NVIDIA

October 2020

Launch Date

July 2021

Desktop

Platform

Desktop

Radeon RX 6800

Model Name

CMP 90HX

Navi II

Generation

Mining GPUs

1700MHz

Base Clock

1500MHz

2105MHz

Boost Clock

1710MHz

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

26,800 million

Transistors

28,300 million

RT Cores

Compute Units

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.

200

240

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.

200

TSMC

Foundry

Samsung

7 nm

Process Size

8 nm

RDNA 2.0

Architecture

Ampere

Memory Specifications

16GB

Memory Size

10GB

GDDR6

Memory Type

GDDR6X

256bit

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.

320bit

2000MHz

Memory Clock

1188MHz

512.0 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.

760.3 GB/s

Display and Media

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

Outputs

No outputs

Theoretical Performance

202.1 GPixel/s

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.

136.8 GPixel/s

505.2 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.

342.0 GTexel/s

32.33 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.

21.89 TFLOPS

1010 GFLOPS

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.

342.0 GFLOPS

16.493 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.

22.328 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.

3840

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.

6400

128 KB per Array

L1 Cache

128 KB (per SM)

4MB

L2 Cache

5MB

250W

TDP

320W

1.3

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

2.1

OpenCL Version

3.0

4.6

OpenGL

4.6

CUDA

8.6

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

2x 8-pin

Power Connectors

2x 8-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.

6.5

Shader Model

6.6

600W

Suggested PSU

700W