AMD Radeon RX 455 OEM vs AMD Radeon R9 285X

VS

AMD Radeon RX 455 OEM AMD Radeon R9 285X

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 455 OEM 's Advantages

Lower TDP (100W vs 200W)

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 2GB)

Larger VRAM bandwidth (264.0GB/s vs 104.0GB/s)

1280 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM

1.613 TFLOPS

Radeon R9 285X +154%

4.104 TFLOPS

Radeon RX 455 OEM

VS

Radeon R9 285X

Graphics Card

Jun 2016

Release Date

Unknown

Arctic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1625 MHz

Memory Clock

1375 MHz

Memory

2GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

384bit

104.0GB/s

Bandwidth

264.0GB/s

Render Config

-

SM Count

-

12

Compute Units

32

768

Shading Units

2048

48

TMUs

128

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

Theoretical Performance

16.80 GPixel/s

Pixel Rate

32.06 GPixel/s

50.40 GTexel/s

Texture Rate

128.3 GTexel/s

-

FP16 (half)

-

1.613 TFLOPS

FP32 (float)

4.104 TFLOPS

100.8 GFLOPS

FP64 (double)

-

Graphics Processor

Tobago

GPU Name

Tonga

Tobago PRO (215-0875010)

GPU Variant

Tonga XT (215-0851313)

GCN 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

5 billion

160 mm²

Die Size

366 mm²

Board Design

100W

TDP

200W

300 W

Suggested PSU

550 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

6.3

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