AMD Radeon R9 390X vs NVIDIA GeForce RTX 4080

VS

AMD Radeon R9 390X

NVIDIA GeForce RTX 4080

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 16GB VRAM GeForce RTX 4080 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 320W)

NVIDIA GeForce RTX 4080 's Advantages

Released 7 years and 3 months late

Boost Clock2505MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (716.8GB/s vs 384.0GB/s)

6912 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

GeForce RTX 4080 +724%

48.74 TFLOPS

3DMark Time Spy

Radeon R9 390X

4245

GeForce RTX 4080 +566%

28272

Radeon R9 390X

VS

GeForce RTX 4080

Graphics Card

Jun 2015

Release Date

Sep 2022

Pirate Islands

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2205 MHz

-

Boost Clock

2505 MHz

1500 MHz

Memory Clock

1400 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6X

512bit

Memory Bus

256bit

384.0GB/s

Bandwidth

716.8GB/s

Render Config

44

Compute Units

-

SM Count

76

2816

Shading Units

9728

176

TMUs

304

64

ROPs

112

-

Tensor Cores

304

-

RT Cores

76

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

64 MB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

280.6 GPixel/s

184.8 GTexel/s

Texture Rate

761.5 GTexel/s

-

FP16 (half)

48.74 TFLOPS

5.914 TFLOPS

FP32 (float)

48.74 TFLOPS

739.2 GFLOPS

FP64 (double)

761.5 GFLOPS

Board Design

275W

TDP

320W

600 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Grenada

GPU Name

AD103

Grenada XT (215-0880004)

GPU Variant

AD103-300-A1

GCN 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

6.2 billion

Transistors

45.9 billion

438 mm²

Die Size

379 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

8.9

6.3

Shader Model

6.7

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