NVIDIA GeForce RTX 3080 Ti vs AMD Radeon R9 285X

VS

NVIDIA GeForce RTX 3080 Ti AMD Radeon R9 285X

We compared two Desktop platform GPUs: 12GB VRAM GeForce RTX 3080 Ti and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 's Advantages

Boost Clock1665MHz

More VRAM (12GB vs 3GB)

Larger VRAM bandwidth (912.4GB/s vs 264.0GB/s)

8192 additional rendering cores

AMD Radeon R9 285X 's Advantages

Lower TDP (200W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti +730%

34.1 TFLOPS

Radeon R9 285X

4.104 TFLOPS

GeForce RTX 3080 Ti

VS

Radeon R9 285X

Graphics Card

May 2021

Release Date

Unknown

GeForce 30

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1365 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

1375 MHz

Memory

12GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

384bit

912.4GB/s

Bandwidth

264.0GB/s

Render Config

80

SM Count

-

Compute Units

32

10240

Shading Units

2048

320

TMUs

128

112

ROPs

32

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

768 KB

Theoretical Performance

186.5 GPixel/s

Pixel Rate

32.06 GPixel/s

532.8 GTexel/s

Texture Rate

128.3 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

4.104 TFLOPS

532.8 GFLOPS

FP64 (double)

-

Graphics Processor

GA102

GPU Name

Tonga

GA102-225-A1

GPU Variant

Tonga XT (215-0851313)

Ampere

Architecture

GCN 3.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

5 billion

628 mm²

Die Size

366 mm²

Board Design

350W

TDP

200W

750 W

Suggested PSU

550 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 12-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

6.3

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