NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon RX 6900 XTX

VS

NVIDIA GeForce RTX 3080 Ti 20 GB AMD Radeon RX 6900 XTX

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 16GB VRAM Radeon RX 6900 XTX 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 576.0GB/s)

5120 additional rendering cores

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock has increased by 46% (2435MHz vs 1665MHz)

Lower TDP (330W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +36%

34.1 TFLOPS

Radeon RX 6900 XTX

24.93 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

Radeon RX 6900 XTX

Graphics Card

Jan 2022

Release Date

Unknown

GeForce 30

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1335 MHz

Base Clock

2075 MHz

1665 MHz

Boost Clock

2435 MHz

1188 MHz

Memory Clock

2250 MHz

Memory

20GB

Memory Size

16GB

GDDR6X

Memory Type

GDDR6

320bit

Memory Bus

256bit

760.3GB/s

Bandwidth

576.0GB/s

Render Config

80

SM Count

-

Compute Units

80

10240

Shading Units

5120

320

TMUs

320

112

ROPs

128

320

Tensor Cores

-

80

RT Cores

80

128 KB (per SM)

L1 Cache

128 KB per Array

6 MB

L2 Cache

4 MB

Theoretical Performance

186.5 GPixel/s

Pixel Rate

311.7 GPixel/s

532.8 GTexel/s

Texture Rate

779.2 GTexel/s

34.10 TFLOPS

FP16 (half)

49.87 TFLOPS

34.10 TFLOPS

FP32 (float)

24.93 TFLOPS

532.8 GFLOPS

FP64 (double)

1.558 TFLOPS

Graphics Processor

GA102

GPU Name

Navi 21

GA102-225-A1

GPU Variant

Navi 21 XTXH (215-121000247)

Ampere

Architecture

RDNA 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

7 nm

28.3 billion

Transistors

26.8 billion

628 mm²

Die Size

520 mm²

Board Design

350W

TDP

330W

750 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

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

2.1

1.3

Vulkan

1.3

8.6

CUDA

-

6.6

Shader Model

6.5

Related GPU Comparisons

1

NVIDIA P106 100 vs NVIDIA GeForce RTX 3080 Ti 20 GB

2

NVIDIA TITAN RTX vs NVIDIA GeForce RTX 3080 Ti 20 GB

3

NVIDIA GeForce RTX 4070 AD103 vs NVIDIA GeForce RTX 3080 Ti 20 GB

4

NVIDIA RTX A5000 Mobile vs NVIDIA GeForce RTX 3080 Ti 20 GB

5

NVIDIA GeForce RTX 4070 Ti SUPER vs NVIDIA GeForce RTX 3080 Ti 20 GB

6

AMD FirePro D700 vs NVIDIA GeForce RTX 3080 Ti 20 GB

7

AMD Radeon RX 6950 XT vs NVIDIA GeForce RTX 3080 Ti 20 GB

8

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 780 Ti Engineering Sample

9

NVIDIA GeForce RTX 3080 Ti 20 GB vs ATI FirePro V5800

10

NVIDIA GeForce RTX 3080 Ti 20 GB vs ATI Radeon HD 3410

Related News

1

AMD's Strix Halo Supports Up to 128GB Memory, Clearly Designed for AI Large Language Models

2

AMD to Launch Advanced Ryzen AI PRO Series Soon

3

Intel Delays Lunar Lake Shipment: Postponed from June to September

4

Initial Test Results of AMD Ryzen AI 9 365 Revealed: IPC Improvement Meets Expectations

5

Elon Musk Responds to Nvidia’s Jensen Huang: Humanoid Robots Will Be Ten Times More Common than Cars

6

AMD Revives Multi-GPU Support: Up to Four Cards and 192GB VRAM

7

TSMC Explores Advanced Chip Packaging Technology: Switches to Rectangular Substrate, Nearly Tripling Usable Area on 300mm Wafers

8

Western Digital WD Blue SN5000 SSD Launched: Up to 8TB Capacity with Mixed TLC/QLC Flash

9

Apple's Most Powerful Laptop is Coming: A Preview of the New MacBook Pro

10

AMD Breakthrough: Ryzen AI HX 370 Processor Benchmark Revealed with Aggressive Performance