AMD Radeon R9 390X vs NVIDIA GeForce RTX 3080

VS

AMD Radeon R9 390X

NVIDIA GeForce RTX 3080

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 10GB VRAM GeForce RTX 3080 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 3080 's Advantages

Released 5 years and 3 months late

Boost Clock1710MHz

More VRAM (10GB vs 8GB)

Larger VRAM bandwidth (760.3GB/s vs 384.0GB/s)

5888 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

GeForce RTX 3080 +403%

29.77 TFLOPS

3DMark Time Spy

Radeon R9 390X

4245

GeForce RTX 3080 +318%

17753

Radeon R9 390X

VS

GeForce RTX 3080

Graphics Card

Jun 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

1440 MHz

-

Boost Clock

1710 MHz

1500 MHz

Memory Clock

1188 MHz

Memory

8GB

Memory Size

10GB

GDDR5

Memory Type

GDDR6X

512bit

Memory Bus

320bit

384.0GB/s

Bandwidth

760.3GB/s

Render Config

44

Compute Units

-

SM Count

68

2816

Shading Units

8704

176

TMUs

272

64

ROPs

96

-

Tensor Cores

272

-

RT Cores

68

16 KB (per CU)

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

5 MB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

164.2 GPixel/s

184.8 GTexel/s

Texture Rate

465.1 GTexel/s

-

FP16 (half)

29.77 TFLOPS

5.914 TFLOPS

FP32 (float)

29.77 TFLOPS

739.2 GFLOPS

FP64 (double)

465.1 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 12-pin

Graphics Processor

Grenada

GPU Name

GA102

Grenada XT (215-0880004)

GPU Variant

GA102-200-KD-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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