AMD Radeon RX 8800 XT vs AMD Radeon Sky 900

VS

AMD Radeon RX 8800 XT

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 8800 XT and 3GB VRAM Radeon Sky 900 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 Clock has increased by 156% (2430MHz vs 950MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (624.1GB/s vs 240.0GB/s)

2304 additional rendering cores

Lower TDP (220W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 8800 XT +484%

19.91 TFLOPS

Radeon Sky 900

3.405 TFLOPS

Radeon RX 8800 XT

VS

Radeon Sky 900

Graphics Card

Unknown

Release Date

Mar 2013

Navi IV(RX 8000)

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1295 MHz

Base Clock

825 MHz

2430 MHz

Boost Clock

950 MHz

2438 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

624.1GB/s

Bandwidth

240.0GB/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

768 KB

64 MB

L3 Cache

-

Theoretical Performance

233.3 GPixel/s

Pixel Rate

30.40 GPixel/s

622.1 GTexel/s

Texture Rate

106.4 GTexel/s

39.81 TFLOPS

FP16 (half)

-

19.91 TFLOPS

FP32 (float)

3.405 TFLOPS

622.1 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

220W

TDP

300W

550 W

Suggested PSU

700 W

1x HDMI 2.1a3x DisplayPort 2.1

Outputs

1x DVI 1x mini-DisplayPort 1.2

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Navi 48

GPU Name

Tahiti

Navi 48 XT

GPU Variant

Orthrus

RDNA 4.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

4 nm

Process Size

28 nm

Unknown

Transistors

4.313 billion

Unknown

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

6.8

Shader Model

5.1

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