NVIDIA GeForce RTX 5090 vs AMD Radeon Sky 900

VS

NVIDIA GeForce RTX 5090

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 32GB VRAM GeForce RTX 5090 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 5090 's Advantages

Released 11 years and 10 months late

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

More VRAM (32GB vs 3GB)

Larger VRAM bandwidth (1.52TB/s vs 240.0GB/s)

19968 additional rendering cores

AMD Radeon Sky 900 's Advantages

Lower TDP (300W vs 500W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 +3121%

109.7 TFLOPS

Radeon Sky 900

3.405 TFLOPS

GeForce RTX 5090

VS

Radeon Sky 900

Graphics Card

Jan 2025

Release Date

Mar 2013

GeForce 50

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2235 MHz

Base Clock

825 MHz

2520 MHz

Boost Clock

950 MHz

1875 MHz

Memory Clock

1250 MHz

Memory

32GB

Memory Size

3GB

GDDR7

Memory Type

GDDR5

512bit

Memory Bus

384bit

1.52TB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

170

SM Count

-

21760

Shading Units

1792

680

TMUs

112

192

ROPs

32

680

Tensor Cores

-

170

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

88 MB

L2 Cache

768 KB

-

Theoretical Performance

483.8 GPixel/s

Pixel Rate

30.40 GPixel/s

1714 GTexel/s

Texture Rate

106.4 GTexel/s

109.7 TFLOPS

FP16 (half)

-

109.7 TFLOPS

FP32 (float)

3.405 TFLOPS

1.714 TFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

500W

TDP

300W

900 W

Suggested PSU

700 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x DVI 1x mini-DisplayPort 1.2

1x 16-pin

Power Connectors

2x 8-pin

Graphics Processor

GB202

GPU Name

Tahiti

GB202-400-A1

GPU Variant

Orthrus

Blackwell 2.0

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

3.0

OpenCL

1.2

1.3

Vulkan

1.2

10.1

CUDA

-

6.8

Shader Model

5.1

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