AMD Radeon RX 455 OEM vs AMD Radeon R9 280

VS

AMD Radeon RX 455 OEM

AMD Radeon R9 280

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 3GB VRAM Radeon R9 280 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 455 OEM 's Advantages

Released 2 years and 3 months late

Lower TDP (100W vs 200W)

AMD Radeon R9 280 's Advantages

Boost Clock933MHz

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (240.0GB/s vs 104.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM

1.613 TFLOPS

Radeon R9 280 +107%

3.344 TFLOPS

Radeon RX 455 OEM

VS

Radeon R9 280

Graphics Card

Jun 2016

Release Date

Mar 2014

Arctic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

827 MHz

-

Boost Clock

933 MHz

1625 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

104.0GB/s

Bandwidth

240.0GB/s

Render Config

12

Compute Units

28

-

768

Shading Units

1792

48

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

29.86 GPixel/s

50.40 GTexel/s

Texture Rate

104.5 GTexel/s

-

1.613 TFLOPS

FP32 (float)

3.344 TFLOPS

100.8 GFLOPS

FP64 (double)

836.0 GFLOPS

Board Design

100W

TDP

200W

300 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tobago

GPU Name

Tahiti

Tobago PRO (215-0875010)

GPU Variant

Tahiti PRO3 (215-0821330)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

4.313 billion

160 mm²

Die Size

352 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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