NVIDIA GeForce RTX 4080 vs AMD Radeon R9 285X

VS

NVIDIA GeForce RTX 4080

AMD Radeon R9 285X

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 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 4080 's Advantages

Boost Clock2505MHz

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (716.8GB/s vs 264.0GB/s)

7680 additional rendering cores

AMD Radeon R9 285X 's Advantages

Lower TDP (200W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 +1087%

48.74 TFLOPS

Radeon R9 285X

4.104 TFLOPS

GeForce RTX 4080

VS

Radeon R9 285X

Graphics Card

Sep 2022

Release Date

Unknown

GeForce 40

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2205 MHz

Base Clock

-

2505 MHz

Boost Clock

-

1400 MHz

Memory Clock

1375 MHz

Memory

16GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

256bit

Memory Bus

384bit

716.8GB/s

Bandwidth

264.0GB/s

Render Config

-

Compute Units

32

76

SM Count

-

9728

Shading Units

2048

304

TMUs

128

112

ROPs

32

304

Tensor Cores

-

76

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

768 KB

-

Theoretical Performance

280.6 GPixel/s

Pixel Rate

32.06 GPixel/s

761.5 GTexel/s

Texture Rate

128.3 GTexel/s

48.74 TFLOPS

FP16 (half)

-

48.74 TFLOPS

FP32 (float)

4.104 TFLOPS

761.5 GFLOPS

FP64 (double)

-

Board Design

320W

TDP

200W

700 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 16-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

AD103

GPU Name

Tonga

AD103-300-A1

GPU Variant

Tonga XT (215-0851313)

Ada Lovelace

Architecture

GCN 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

45.9 billion

Transistors

5 billion

379 mm²

Die Size

366 mm²

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

8.9

CUDA

-

6.7

Shader Model

6.3

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