NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon R9 390X

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

AMD Radeon R9 390X

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Released 6 years and 7 months late

Boost Clock1665MHz

More VRAM (20GB vs 8GB)

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

7424 additional rendering cores

AMD Radeon R9 390X 's Advantages

Lower TDP (275W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +476%

34.1 TFLOPS

Radeon R9 390X

5.914 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

Radeon R9 390X

Graphics Card

Jan 2022

Release Date

Jun 2015

GeForce 30

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

-

1665 MHz

Boost Clock

-

1188 MHz

Memory Clock

1500 MHz

Memory

20GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR5

320bit

Memory Bus

512bit

760.3GB/s

Bandwidth

384.0GB/s

Render Config

-

Compute Units

44

80

SM Count

-

10240

Shading Units

2816

320

TMUs

176

112

ROPs

64

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

1024 KB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

67.20 GPixel/s

532.8 GTexel/s

Texture Rate

184.8 GTexel/s

34.10 TFLOPS

FP16 (half)

-

34.10 TFLOPS

FP32 (float)

5.914 TFLOPS

532.8 GFLOPS

FP64 (double)

739.2 GFLOPS

Board Design

350W

TDP

275W

750 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 12-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GA102

GPU Name

Grenada

GA102-225-A1

GPU Variant

Grenada XT (215-0880004)

Ampere

Architecture

GCN 2.0

Samsung

Foundry

TSMC

8 nm

Process Size

28 nm

28.3 billion

Transistors

6.2 billion

628 mm²

Die Size

438 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.0

1.3

Vulkan

1.2

8.6

CUDA

-

6.6

Shader Model

6.3

Related GPU Comparisons

1

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GT 620 OEM

2

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GT 430 OEM

3

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA NVS 315

4

NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon RX 7900 GRE

5

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 690

6

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce 505 OEM

7

NVIDIA GeForce RTX 3080 Ti 20 GB vs ATI Radeon HD 4650 AGP

8

NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon Pro Vega II Duo

9

NVIDIA GeForce RTX 3080 Ti 20 GB vs AMD Radeon Pro Duo Polaris

10

NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce RTX 4080 SUPER

Related News

1

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

2

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

3

CXMT Reportedly Achieves 80% Yield in DDR5 Production

4

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

5

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

6

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

7

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

8

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

9

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

10

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption