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

VS

NVIDIA GeForce RTX 3080 Ti NVIDIA GeForce RTX 3080 Ti 20 GB

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 3080 Ti and 20GB VRAM GeForce RTX 3080 Ti 20 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 's Advantages

Larger VRAM bandwidth (912.4GB/s vs 760.3GB/s)

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Released 8 months late

More VRAM (20GB vs 12GB)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti

34.1 TFLOPS

GeForce RTX 3080 Ti 20 GB

34.1 TFLOPS

GeForce RTX 3080 Ti

VS

GeForce RTX 3080 Ti 20 GB

Graphics Card

May 2021

Release Date

Jan 2022

GeForce 30

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1365 MHz

Base Clock

1335 MHz

1665 MHz

Boost Clock

1665 MHz

1188 MHz

Memory Clock

1188 MHz

Memory

12GB

Memory Size

20GB

GDDR6X

Memory Type

GDDR6X

384bit

Memory Bus

320bit

912.4GB/s

Bandwidth

760.3GB/s

Render Config

80

SM Count

80

-

Compute Units

-

10240

Shading Units

10240

320

TMUs

320

112

ROPs

112

320

Tensor Cores

320

80

RT Cores

80

128 KB (per SM)

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

6 MB

Theoretical Performance

186.5 GPixel/s

Pixel Rate

186.5 GPixel/s

532.8 GTexel/s

Texture Rate

532.8 GTexel/s

34.10 TFLOPS

FP16 (half)

34.10 TFLOPS

FP32 (float)

34.10 TFLOPS

532.8 GFLOPS

FP64 (double)

532.8 GFLOPS

Graphics Processor

GA102

GPU Name

GA102

GA102-225-A1

GPU Variant

GA102-225-A1

Ampere

Architecture

Ampere

Samsung

Foundry

Samsung

8 nm

Process Size

8 nm

28.3 billion

Transistors

28.3 billion

628 mm²

Die Size

628 mm²

Board Design

350W

TDP

350W

750 W

Suggested PSU

750 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 12-pin

Power Connectors

1x 12-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

8.6

6.6

Shader Model

6.6

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