NVIDIA GeForce RTX 5080 vs AMD Radeon R9 390

VS

NVIDIA GeForce RTX 5080

AMD Radeon R9 390

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 9 years and 7 months late

Boost Clock2520MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (973.8GB/s vs 384.0GB/s)

8192 additional rendering cores

AMD Radeon R9 390 's Advantages

Lower TDP (275W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +958%

54.19 TFLOPS

Radeon R9 390

5.12 TFLOPS

GeForce RTX 5080

VS

Radeon R9 390

Graphics Card

Jan 2025

Release Date

Jun 2015

GeForce 50

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2235 MHz

Base Clock

-

2520 MHz

Boost Clock

-

2400 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

8GB

GDDR7

Memory Type

GDDR5

256bit

Memory Bus

512bit

973.8GB/s

Bandwidth

384.0GB/s

Render Config

-

Compute Units

40

84

SM Count

-

10752

Shading Units

2560

336

TMUs

160

128

ROPs

64

336

Tensor Cores

-

84

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

64 MB

L2 Cache

1024 KB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

64.00 GPixel/s

846.7 GTexel/s

Texture Rate

160.0 GTexel/s

54.19 TFLOPS

FP16 (half)

-

54.19 TFLOPS

FP32 (float)

5.120 TFLOPS

846.7 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

350W

TDP

275W

750 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

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

1x 16-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GB203

GPU Name

Grenada

GB203-400-A1

GPU Variant

Grenada PRO (215-0880030)

Blackwell 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

0

Process Size

28 nm

Unknown

Transistors

6.2 billion

377 mm²

Die Size

438 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

10.1

CUDA

-

6.8

Shader Model

6.3

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