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NVIDIA GeForce RTX 3080 Ti vs AMD Radeon RX 7800 XT

NVIDIA GeForce RTX 3080 Ti

AMD Radeon RX 7800 XT

GPU Comparison Result

Below are the results of a comparison of NVIDIA GeForce RTX 3080 Ti and AMD Radeon RX 7800 XT video cards based on key performance characteristics, as well as power consumption and much more.

Advantages

NVIDIA GeForce RTX 3080 Ti

Higher Bandwidth: 912.4 GB/s (912.4 GB/s vs 624.1 GB/s)
More Shading Units: 10240 (10240 vs 3840)

AMD Radeon RX 7800 XT

Higher Boost Clock: 2430MHz (1665MHz vs 2430MHz)
Larger Memory Size: 16GB (12GB vs 16GB)
Newer Launch Date: August 2023 (May 2021 vs August 2023)

Basic

NVIDIA

Label Name

AMD

May 2021

Launch Date

August 2023

Desktop

Platform

Desktop

GeForce RTX 3080 Ti

Model Name

Radeon RX 7800 XT

GeForce 30

Generation

Navi III

1365MHz

Base Clock

1295MHz

1665MHz

Boost Clock

2430MHz

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Memory Specifications

12GB

Memory Size

16GB

GDDR6X

Memory Type

GDDR6

384bit

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.

256bit

1188MHz

Memory Clock

2438MHz

912.4 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.

624.1 GB/s

Theoretical Performance

186.5 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.

233.3 GPixel/s

532.8 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.

583.2 GTexel/s

34.10 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.

74.65 TFLOPS

532.8 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.

1166 GFLOPS

33.418 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.

36.574 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.

10240

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.

3840

128 KB (per SM)

L1 Cache

128 KB per Array

6MB

L2 Cache

4MB

350W

TDP

263W

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

3.0

OpenCL Version

2.2