AMD Radeon R9 390X vs NVIDIA GeForce RTX 5090

VS

AMD Radeon R9 390X

NVIDIA GeForce RTX 5090

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 32GB VRAM GeForce RTX 5090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Lower TDP (275W vs 500W)

NVIDIA GeForce RTX 5090 's Advantages

Released 9 years and 7 months late

Boost Clock2520MHz

More VRAM (32GB vs 8GB)

Larger VRAM bandwidth (1.52TB/s vs 384.0GB/s)

18944 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

GeForce RTX 5090 +1754%

109.7 TFLOPS

Radeon R9 390X

VS

GeForce RTX 5090

Graphics Card

Jun 2015

Release Date

Jan 2025

Pirate Islands

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

-

Base Clock

2235 MHz

-

Boost Clock

2520 MHz

1500 MHz

Memory Clock

1875 MHz

Memory

8GB

Memory Size

32GB

GDDR5

Memory Type

GDDR7

512bit

Memory Bus

512bit

384.0GB/s

Bandwidth

1.52TB/s

Render Config

44

Compute Units

-

SM Count

170

2816

Shading Units

21760

176

TMUs

680

64

ROPs

192

-

Tensor Cores

680

-

RT Cores

170

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

88 MB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

483.8 GPixel/s

184.8 GTexel/s

Texture Rate

1714 GTexel/s

-

FP16 (half)

109.7 TFLOPS

5.914 TFLOPS

FP32 (float)

109.7 TFLOPS

739.2 GFLOPS

FP64 (double)

1.714 TFLOPS

Board Design

275W

TDP

500W

600 W

Suggested PSU

900 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

1x 6-pin + 1x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Grenada

GPU Name

GB202

Grenada XT (215-0880004)

GPU Variant

GB202-400-A1

GCN 2.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

4 nm

6.2 billion

Transistors

Unknown

438 mm²

Die Size

Unknown

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

10.1

6.3

Shader Model

6.8

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