AMD Radeon R9 280 vs AMD Radeon R9 280X2

VS

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

Main Differences

AMD Radeon R9 280 's Advantages

Lower TDP (200W vs 375W)

AMD Radeon R9 280X2 's Advantages

Boost Clock has increased by 7% (1000MHz vs 933MHz)

Larger VRAM bandwidth (288.0GB/s vs 240.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 280

3.344 TFLOPS

Radeon R9 280X2 +22%

4.096 TFLOPS

Radeon R9 280

VS

Radeon R9 280X2

Graphics Card

Mar 2014

Release Date

Unknown

Volcanic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

827 MHz

Base Clock

950 MHz

933 MHz

Boost Clock

1000 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

288.0GB/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

768 KB

Theoretical Performance

29.86 GPixel/s

Pixel Rate

32.00 GPixel/s

104.5 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

3.344 TFLOPS

FP32 (float)

4.096 TFLOPS

836.0 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

Tahiti

GPU Name

Tahiti

Tahiti PRO3 (215-0821330)

GPU Variant

Tahiti XTL (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

352 mm²

Board Design

200W

TDP

375W

550 W

Suggested PSU

750 W

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

Outputs

6x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

3x 8-pin

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

5.1

Shader Model

5.1

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