NVIDIA GeForce RTX 4090 vs AMD Radeon Sky 900

VS

NVIDIA GeForce RTX 4090 AMD Radeon Sky 900

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

Released 9 years and 6 months late

Boost Clock has increased by 165% (2520MHz vs 950MHz)

More VRAM (24GB vs 3GB)

14592 additional rendering cores

AMD Radeon Sky 900 's Advantages

Larger VRAM bandwidth (240.0TB/s vs 1.01TB/s)

Lower TDP (300W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +2325%

82.58 TFLOPS

Radeon Sky 900

3.405 TFLOPS

GeForce RTX 4090

VS

Radeon Sky 900

Graphics Card

Sep 2022

Release Date

Mar 2013

GeForce 40

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2235 MHz

Base Clock

825 MHz

2520 MHz

Boost Clock

950 MHz

1313 MHz

Memory Clock

1250 MHz

Memory

24GB

Memory Size

3GB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

384bit

1.01TB/s

Bandwidth

240.0GB/s

Render Config

128

SM Count

-

Compute Units

28

16384

Shading Units

1792

512

TMUs

112

176

ROPs

32

512

Tensor Cores

-

128

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

72 MB

L2 Cache

768 KB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

30.40 GPixel/s

1290 GTexel/s

Texture Rate

106.4 GTexel/s

82.58 TFLOPS

FP16 (half)

-

82.58 TFLOPS

FP32 (float)

3.405 TFLOPS

1290 GFLOPS

FP64 (double)

851.2 GFLOPS

Graphics Processor

AD102

GPU Name

Tahiti

AD102-300-A1

GPU Variant

Orthrus

Ada Lovelace

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

76.3 billion

Transistors

4.313 billion

609 mm²

Die Size

352 mm²

Board Design

450W

TDP

300W

850 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x mini-DisplayPort 1.2

1x 16-pin

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

8.9

CUDA

-

6.7

Shader Model

5.1

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