AMD Radeon RX 455 OEM vs AMD Radeon R9 295X2

VS

AMD Radeon RX 455 OEM

AMD Radeon R9 295X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 455 OEM and 4GB VRAM Radeon R9 295X2 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 2 months late

Lower TDP (100W vs 500W)

AMD Radeon R9 295X2 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (320.0GB/s vs 104.0GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 455 OEM

1.613 TFLOPS

Radeon R9 295X2 +255%

5.733 TFLOPS

Radeon RX 455 OEM

VS

Radeon R9 295X2

Graphics Card

Jun 2016

Release Date

Apr 2014

Arctic Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1625 MHz

Memory Clock

1250 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

104.0GB/s

Bandwidth

320.0GB/s

Render Config

12

Compute Units

44

-

768

Shading Units

2816

48

TMUs

176

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

16.80 GPixel/s

Pixel Rate

65.15 GPixel/s

50.40 GTexel/s

Texture Rate

179.2 GTexel/s

-

1.613 TFLOPS

FP32 (float)

5.733 TFLOPS

100.8 GFLOPS

FP64 (double)

716.7 GFLOPS

Board Design

100W

TDP

500W

300 W

Suggested PSU

900 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Tobago

GPU Name

Vesuvius

Tobago PRO (215-0875010)

GPU Variant

Vesuvius XT (215-0852022)

GCN 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

6.2 billion

160 mm²

Die Size

438 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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