AMD Radeon VII vs AMD Radeon RX 455 OEM

VS

AMD Radeon VII

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon VII 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 VII 's Advantages

Released 2 years and 8 months late

Boost Clock1750MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (1020GB/s vs 104.0GB/s)

3072 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Lower TDP (100W vs 295W)

Score

Benchmark

FP32 (float)

Radeon VII +733%

13.44 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

Radeon VII

VS

Radeon RX 455 OEM

Graphics Card

Feb 2019

Release Date

Jun 2016

Vega II

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1400 MHz

Base Clock

-

1750 MHz

Boost Clock

-

1000 MHz

Memory Clock

1625 MHz

Memory

16GB

Memory Size

2GB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

128bit

1020GB/s

Bandwidth

104.0GB/s

Render Config

60

Compute Units

12

-

3840

Shading Units

768

240

TMUs

48

64

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

112.0 GPixel/s

Pixel Rate

16.80 GPixel/s

420.0 GTexel/s

Texture Rate

50.40 GTexel/s

26.88 TFLOPS

FP16 (half)

-

13.44 TFLOPS

FP32 (float)

1.613 TFLOPS

3.360 TFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

295W

TDP

100W

600 W

Suggested PSU

300 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Vega 20

GPU Name

Tobago

Vega 20 XT

GPU Variant

Tobago PRO (215-0875010)

GCN 5.1

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

13.23 billion

Transistors

2.08 billion

331 mm²

Die Size

160 mm²

Graphics Features

12 (12_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.7

Shader Model

6.3

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