AMD Radeon RX 8800 XT vs AMD Radeon RX 455 OEM

VS

AMD Radeon RX 8800 XT

AMD Radeon RX 455 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 8800 XT 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 RX 8800 XT 's Advantages

Boost Clock2430MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (624.1GB/s vs 104.0GB/s)

3328 additional rendering cores

AMD Radeon RX 455 OEM 's Advantages

Lower TDP (100W vs 220W)

Score

Benchmark

FP32 (float)

Radeon RX 8800 XT +1134%

19.91 TFLOPS

Radeon RX 455 OEM

1.613 TFLOPS

Radeon RX 8800 XT

VS

Radeon RX 455 OEM

Graphics Card

Unknown

Release Date

Jun 2016

Navi IV(RX 8000)

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1295 MHz

Base Clock

-

2430 MHz

Boost Clock

-

2438 MHz

Memory Clock

1625 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

624.1GB/s

Bandwidth

104.0GB/s

Render Config

64

Compute Units

12

-

4096

Shading Units

768

256

TMUs

48

96

ROPs

16

-

64

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

16.80 GPixel/s

622.1 GTexel/s

Texture Rate

50.40 GTexel/s

39.81 TFLOPS

FP16 (half)

-

19.91 TFLOPS

FP32 (float)

1.613 TFLOPS

622.1 GFLOPS

FP64 (double)

100.8 GFLOPS

Board Design

220W

TDP

100W

550 W

Suggested PSU

300 W

1x HDMI 2.1a3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 48

GPU Name

Tobago

Navi 48 XT

GPU Variant

Tobago PRO (215-0875010)

RDNA 4.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

2.08 billion

Unknown

Die Size

160 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.0

1.3

Vulkan

1.2

-

6.8

Shader Model

6.3

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