AMD Radeon R9 290X2 vs AMD Radeon RX 455 OEM

VS

AMD Radeon R9 290X2

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 and 2GB VRAM Radeon RX 455 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X2 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (345.6GB/s vs 104.0GB/s)

2048 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Released 2 years late

Lower TDP (100W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 290X2 +249%

5.632 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

Radeon R9 290X2

VS

Radeon RX 455 OEM

Graphics Card

Jun 2014

Release Date

Jun 2016

Volcanic Islands

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

1625 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

104.0GB/s

Render Config

44

Compute Units

12

-

2816

Shading Units

768

176

TMUs

48

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

16.80 GPixel/s

176.0 GTexel/s

Texture Rate

50.40 GTexel/s

-

5.632 TFLOPS

FP32 (float)

1.613 TFLOPS

704.0 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

580W

TDP

100W

950 W

Suggested PSU

300 W

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

Outputs

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

4x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Hawaii

GPU Name

Tobago

Hawaii XT (215-0852000)

GPU Variant

Tobago PRO (215-0875010)

GCN 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

2.08 billion

438 mm²

Die Size

160 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

6.3

Shader Model

6.3

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