NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon RX 7800 XT

VS

NVIDIA GeForce RTX 3080 Ti 20 GB AMD Radeon RX 7800 XT

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

More VRAM (20GB vs 16GB)

Larger VRAM bandwidth (760.3GB/s vs 624.1GB/s)

6400 additional rendering cores

AMD Radeon RX 7800 XT 's Advantages

Released 1 years and 7 months late

Boost Clock has increased by 46% (2430MHz vs 1665MHz)

Lower TDP (263W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB

34.1 TFLOPS

Radeon RX 7800 XT +9%

37.32 TFLOPS

Blender

GeForce RTX 3080 Ti 20 GB +129%

6294

Radeon RX 7800 XT

2742

GeForce RTX 3080 Ti 20 GB

VS

Radeon RX 7800 XT

Graphics Card

Jan 2022

Release Date

Aug 2023

GeForce 30

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1335 MHz

Base Clock

1295 MHz

1665 MHz

Boost Clock

2430 MHz

1188 MHz

Memory Clock

2438 MHz

Memory

20GB

Memory Size

16GB

GDDR6X

Memory Type

GDDR6

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

624.1GB/s

Render Config

80

SM Count

-

Compute Units

60

10240

Shading Units

3840

320

TMUs

240

112

ROPs

96

320

Tensor Cores

-

80

RT Cores

60

128 KB (per SM)

L1 Cache

128 KB per Array

6 MB

L2 Cache

4 MB

Theoretical Performance

186.5 GPixel/s

Pixel Rate

233.3 GPixel/s

532.8 GTexel/s

Texture Rate

583.2 GTexel/s

34.10 TFLOPS

FP16 (half)

74.65 TFLOPS

34.10 TFLOPS

FP32 (float)

37.32 TFLOPS

532.8 GFLOPS

FP64 (double)

1166 GFLOPS

Graphics Processor

GA102

GPU Name

Navi 32

GA102-225-A1

GPU Variant

Navi 32 XT (215-180000006)

Ampere

Architecture

RDNA 3.0

Samsung

Foundry

TSMC

8 nm

Process Size

5 nm

28.3 billion

Transistors

28.1 billion

628 mm²

Die Size

346 mm²

Board Design

350W

TDP

263W

750 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1a 3x DisplayPort 2.1

1x 12-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.3

Vulkan

1.3

8.6

CUDA

-

6.6

Shader Model

6.7

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