AMD Radeon RX 8800 XT vs AMD Radeon R9 285

VS

AMD Radeon RX 8800 XT

AMD Radeon R9 285

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 8800 XT and 2GB VRAM Radeon R9 285 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 176.0GB/s)

2304 additional rendering cores

AMD Radeon R9 285 's Advantages

Lower TDP (190W vs 220W)

Score

Benchmark

FP32 (float)

Radeon RX 8800 XT +505%

19.91 TFLOPS

Radeon R9 285

3.29 TFLOPS

Radeon RX 8800 XT

VS

Radeon R9 285

Graphics Card

Unknown

Release Date

Sep 2014

Navi IV(RX 8000)

Generation

Volcanic 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

1375 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

624.1GB/s

Bandwidth

176.0GB/s

Render Config

64

Compute Units

28

-

4096

Shading Units

1792

256

TMUs

112

96

ROPs

32

-

64

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

29.38 GPixel/s

622.1 GTexel/s

Texture Rate

102.8 GTexel/s

39.81 TFLOPS

FP16 (half)

3.290 TFLOPS

19.91 TFLOPS

FP32 (float)

3.290 TFLOPS

622.1 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

220W

TDP

190W

550 W

Suggested PSU

450 W

1x HDMI 2.1a3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 48

GPU Name

Tonga

Navi 48 XT

GPU Variant

Tonga PRO (215-0851128)

RDNA 4.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

5 billion

Unknown

Die Size

366 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2.170

-

6.8

Shader Model

6.5

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