NVIDIA GeForce RTX 5090 vs AMD Radeon HD 6390

VS

NVIDIA GeForce RTX 5090

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 32GB VRAM GeForce RTX 5090 and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5090 's Advantages

Released 13 years and 6 months late

Boost Clock2520MHz

More VRAM (32GB vs 1024GB)

Larger VRAM bandwidth (1.52TB/s vs 16.00GB/s)

21440 additional rendering cores

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 500W)

Score

Benchmark

FP32 (float)

GeForce RTX 5090 +31064%

109.7 TFLOPS

Radeon HD 6390

0.352 TFLOPS

GeForce RTX 5090

VS

Radeon HD 6390

Graphics Card

Jan 2025

Release Date

Jul 2011

GeForce 50

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1875 MHz

Memory Clock

500 MHz

Memory

32GB

Memory Size

1024MB

GDDR7

Memory Type

DDR2

512bit

Memory Bus

128bit

1.52TB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

4

170

SM Count

-

21760

Shading Units

320

680

TMUs

16

192

ROPs

8

680

Tensor Cores

-

170

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

88 MB

L2 Cache

256 KB

-

Theoretical Performance

483.8 GPixel/s

Pixel Rate

4.400 GPixel/s

1714 GTexel/s

Texture Rate

8.800 GTexel/s

109.7 TFLOPS

FP16 (half)

-

109.7 TFLOPS

FP32 (float)

352.0 GFLOPS

1.714 TFLOPS

FP64 (double)

-

Board Design

500W

TDP

39W

900 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

None

Graphics Processor

GB202

GPU Name

Redwood

GB202-400-A1

GPU Variant

Redwood LE

Blackwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

4 nm

Process Size

40 nm

Unknown

Transistors

0.627 billion

Unknown

Die Size

104 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

10.1

CUDA

-

6.8

Shader Model

5.0

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