AMD Radeon RX 580X vs AMD Radeon RX 8800 XT

VS

AMD Radeon RX 580X

AMD Radeon RX 8800 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580X and 16GB VRAM Radeon RX 8800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X 's Advantages

Lower TDP (185W vs 220W)

AMD Radeon RX 8800 XT 's Advantages

Boost Clock has increased by 81% (2430MHz vs 1340MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (624.1GB/s vs 256.0GB/s)

1792 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580X

6.175 TFLOPS

Radeon RX 8800 XT +222%

19.91 TFLOPS

Radeon RX 580X

VS

Radeon RX 8800 XT

Graphics Card

Apr 2018

Release Date

Unknown

Polaris

Generation

Navi IV(RX 8000)

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1257 MHz

Base Clock

1295 MHz

1340 MHz

Boost Clock

2430 MHz

2000 MHz

Memory Clock

2438 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

624.1GB/s

Render Config

36

Compute Units

64

-

2304

Shading Units

4096

144

TMUs

256

32

ROPs

96

-

RT Cores

64

16 KB (per CU)

L1 Cache

128 KB per Array

2 MB

L2 Cache

4 MB

-

L3 Cache

64 MB

Theoretical Performance

42.88 GPixel/s

Pixel Rate

233.3 GPixel/s

193.0 GTexel/s

Texture Rate

622.1 GTexel/s

6.175 TFLOPS

FP16 (half)

39.81 TFLOPS

6.175 TFLOPS

FP32 (float)

19.91 TFLOPS

385.9 GFLOPS

FP64 (double)

622.1 GFLOPS

Board Design

185W

TDP

220W

450 W

Suggested PSU

550 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1a3x DisplayPort 2.1

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Polaris 20

GPU Name

Navi 48

Polaris 20 XTX (215-0910038)

GPU Variant

Navi 48 XT

GCN 4.0

Architecture

RDNA 4.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

4 nm

5.7 billion

Transistors

Unknown

232 mm²

Die Size

Unknown

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.2

Vulkan

1.3

-

6.4

Shader Model

6.8

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