AMD Radeon R9 285X vs NVIDIA GeForce RTX 5080

VS

AMD Radeon R9 285X NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 16GB VRAM GeForce RTX 5080 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 160.0GB/s)

Lower TDP (200W vs 350W)

NVIDIA GeForce RTX 5080 's Advantages

Boost Clock2520MHz

More VRAM (16GB vs 3GB)

8704 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 285X

4.104 TFLOPS

GeForce RTX 5080 +1220%

54.19 TFLOPS

Radeon R9 285X

VS

GeForce RTX 5080

Graphics Card

Unknown

Release Date

Jan 2025

Volcanic Islands

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

2235 MHz

-

Boost Clock

2520 MHz

1375 MHz

Memory Clock

2500 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

160.0GB/s

Render Config

-

SM Count

84

32

Compute Units

-

2048

Shading Units

10752

128

TMUs

336

32

ROPs

128

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

64 MB

Theoretical Performance

32.06 GPixel/s

Pixel Rate

322.6 GPixel/s

128.3 GTexel/s

Texture Rate

846.7 GTexel/s

-

FP16 (half)

54.19 TFLOPS

4.104 TFLOPS

FP32 (float)

54.19 TFLOPS

-

FP64 (double)

846.7 GFLOPS

Graphics Processor

Tonga

GPU Name

GB203

Tonga XT (215-0851313)

GPU Variant

GB203

GCN 3.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

0 nm

5 billion

Transistors

Unknown

366 mm²

Die Size

Unknown

Board Design

200W

TDP

350W

550 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 16-pin

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

9.1

6.3

Shader Model

6.7

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