AMD Radeon R9 390X vs NVIDIA GeForce RTX 3090 Ti

VS

AMD Radeon R9 390X NVIDIA GeForce RTX 3090 Ti

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 24GB VRAM GeForce RTX 3090 Ti 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 450W)

NVIDIA GeForce RTX 3090 Ti 's Advantages

Released 6 years and 7 months late

Boost Clock1860MHz

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (1008GB/s vs 384.0GB/s)

7936 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

GeForce RTX 3090 Ti +576%

40 TFLOPS

3DMark Time Spy

Radeon R9 390X

4245

GeForce RTX 3090 Ti +420%

22082

Radeon R9 390X

VS

GeForce RTX 3090 Ti

Graphics Card

Jun 2015

Release Date

Jan 2022

Pirate Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1560 MHz

-

Boost Clock

1860 MHz

1500 MHz

Memory Clock

1313 MHz

Memory

8GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

512bit

Memory Bus

384bit

384.0GB/s

Bandwidth

1008GB/s

Render Config

-

SM Count

84

44

Compute Units

-

2816

Shading Units

10752

176

TMUs

336

64

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

6 MB

Theoretical Performance

67.20 GPixel/s

Pixel Rate

208.3 GPixel/s

184.8 GTexel/s

Texture Rate

625.0 GTexel/s

-

FP16 (half)

40.00 TFLOPS

5.914 TFLOPS

FP32 (float)

40.00 TFLOPS

739.2 GFLOPS

FP64 (double)

625.0 GFLOPS

Graphics Processor

Grenada

GPU Name

GA102

Grenada XT (215-0880004)

GPU Variant

GA102-350-A1

GCN 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

28 nm

Process Size

8 nm

6.2 billion

Transistors

28.3 billion

438 mm²

Die Size

628 mm²

Board Design

275W

TDP

450W

600 W

Suggested PSU

850 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 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

8.6

6.3

Shader Model

6.6

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