AMD Radeon R9 280 vs AMD Radeon R9 380X

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 and 4GB VRAM Radeon R9 380X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280 's Advantages

Boost Clock933MHz

Larger VRAM bandwidth (240.0GB/s vs 182.4GB/s)

AMD Radeon R9 380X 's Advantages

Released 1 years and 8 months late

More VRAM (4GB vs 3GB)

256 additional rendering cores

Lower TDP (190W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 280

3.344 TFLOPS

Radeon R9 380X +18%

3.973 TFLOPS

3DMark Time Spy

Radeon R9 280

2009

Radeon R9 380X +51%

3050

Radeon R9 280

VS

Radeon R9 380X

Graphics Card

Mar 2014

Release Date

Nov 2015

Volcanic Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

827 MHz

Base Clock

-

933 MHz

Boost Clock

-

1250 MHz

Memory Clock

1425 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

182.4GB/s

Render Config

-

SM Count

-

28

Compute Units

32

1792

Shading Units

2048

112

TMUs

128

32

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

29.86 GPixel/s

Pixel Rate

31.04 GPixel/s

104.5 GTexel/s

Texture Rate

124.2 GTexel/s

-

FP16 (half)

3.973 TFLOPS

3.344 TFLOPS

FP32 (float)

3.973 TFLOPS

836.0 GFLOPS

FP64 (double)

248.3 GFLOPS

Graphics Processor

Tahiti

GPU Name

Antigua

Tahiti PRO3 (215-0821330)

GPU Variant

Antigua XT (215-0877016)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5 billion

352 mm²

Die Size

366 mm²

Board Design

200W

TDP

190W

550 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

6.3

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