AMD Radeon R9 390 X2 vs NVIDIA GeForce RTX 3090

VS

AMD Radeon R9 390 X2

NVIDIA GeForce RTX 3090

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 24GB VRAM GeForce RTX 3090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3090 's Advantages

Released 5 years late

Boost Clock1695MHz

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (936.2GB/s vs 345.6GB/s)

7936 additional rendering cores

Lower TDP (350W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2

5.12 TFLOPS

GeForce RTX 3090 +594%

35.58 TFLOPS

Radeon R9 390 X2

VS

GeForce RTX 3090

Graphics Card

Sep 2015

Release Date

Sep 2020

Pirate Islands

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1395 MHz

-

Boost Clock

1695 MHz

1350 MHz

Memory Clock

1219 MHz

Memory

8GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6X

512bit

Memory Bus

384bit

345.6GB/s

Bandwidth

936.2GB/s

Render Config

40

Compute Units

-

SM Count

82

2560

Shading Units

10496

160

TMUs

328

64

ROPs

112

-

Tensor Cores

328

-

RT Cores

82

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

6 MB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

189.8 GPixel/s

160.0 GTexel/s

Texture Rate

556.0 GTexel/s

-

FP16 (half)

35.58 TFLOPS

5.120 TFLOPS

FP32 (float)

35.58 TFLOPS

640.0 GFLOPS

FP64 (double)

556.0 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 1.4a

4x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

Grenada

GPU Name

GA102

Grenada PRO (215-0880030)

GPU Variant

GA102-300-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

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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