AMD Radeon R9 280X2 vs NVIDIA GeForce RTX 3090

VS

AMD Radeon R9 280X2

NVIDIA GeForce RTX 3090

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 24GB VRAM GeForce RTX 3090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages

Boost Clock has increased by 70% (1695MHz vs 1000MHz)

More VRAM (24GB vs 3GB)

Larger VRAM bandwidth (936.2GB/s vs 288.0GB/s)

8448 additional rendering cores

Lower TDP (350W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2

4.096 TFLOPS

GeForce RTX 3090 +768%

35.58 TFLOPS

Radeon R9 280X2

VS

GeForce RTX 3090

Graphics Card

Unknown

Release Date

Sep 2020

Volcanic Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

950 MHz

Base Clock

1395 MHz

1000 MHz

Boost Clock

1695 MHz

1500 MHz

Memory Clock

1219 MHz

Memory

3GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

936.2GB/s

Render Config

32

Compute Units

-

SM Count

82

2048

Shading Units

10496

128

TMUs

328

32

ROPs

112

-

Tensor Cores

328

-

RT Cores

82

16 KB (per CU)

L1 Cache

128 KB (per SM)

768 KB

L2 Cache

6 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

189.8 GPixel/s

128.0 GTexel/s

Texture Rate

556.0 GTexel/s

-

FP16 (half)

35.58 TFLOPS

4.096 TFLOPS

FP32 (float)

35.58 TFLOPS

1024 GFLOPS

FP64 (double)

556.0 GFLOPS

Board Design

375W

TDP

350W

750 W

Suggested PSU

750 W

6x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

3x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

Tahiti

GPU Name

GA102

Tahiti XTL (215-0821065)

GPU Variant

GA102-300-A1

GCN 1.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

4.313 billion

Transistors

28.3 billion

352 mm²

Die Size

628 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

5.1

Shader Model

6.6

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