AMD Radeon R9 390 X2 vs NVIDIA GeForce RTX 5080

VS

AMD Radeon R9 390 X2

NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 16GB VRAM GeForce RTX 5080 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 4 months late

Boost Clock2520MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (973.8GB/s vs 345.6GB/s)

8192 additional rendering cores

Lower TDP (350W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2

5.12 TFLOPS

GeForce RTX 5080 +958%

54.19 TFLOPS

Radeon R9 390 X2

VS

GeForce RTX 5080

Graphics Card

Sep 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

1350 MHz

Memory Clock

2400 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

512bit

Memory Bus

256bit

345.6GB/s

Bandwidth

973.8GB/s

Render Config

40

Compute Units

-

SM Count

84

2560

Shading Units

10752

160

TMUs

336

64

ROPs

128

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

64 MB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

322.6 GPixel/s

160.0 GTexel/s

Texture Rate

846.7 GTexel/s

-

FP16 (half)

54.19 TFLOPS

5.120 TFLOPS

FP32 (float)

54.19 TFLOPS

640.0 GFLOPS

FP64 (double)

846.7 GFLOPS

Board Design

580W

TDP

350W

950 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

4x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Grenada

GPU Name

GB203

Grenada PRO (215-0880030)

GPU Variant

GB203-400-A1

GCN 2.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

0

6.2 billion

Transistors

Unknown

438 mm²

Die Size

377 mm²

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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