AMD Radeon RX 7900 XT vs AMD Radeon R9 390

VS

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 7 years and 5 months late

Boost Clock2394MHz

More VRAM (20GB vs 8GB)

Larger VRAM bandwidth (800.0GB/s vs 384.0GB/s)

2816 additional rendering cores

AMD Radeon R9 390 's Advantages

Lower TDP (275W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +905%

51.48 TFLOPS

Radeon R9 390

5.12 TFLOPS

3DMark Time Spy

Radeon RX 7900 XT +576%

26739

Radeon R9 390

3953

Radeon RX 7900 XT

VS

Radeon R9 390

Graphics Card

Nov 2022

Release Date

Jun 2015

Navi III

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1387 MHz

Base Clock

-

2394 MHz

Boost Clock

-

2500 MHz

Memory Clock

1500 MHz

Memory

20GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

320bit

Memory Bus

512bit

800.0GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

84

Compute Units

40

5376

Shading Units

2560

336

TMUs

160

192

ROPs

64

-

Tensor Cores

-

84

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

1024 KB

Theoretical Performance

459.6 GPixel/s

Pixel Rate

64.00 GPixel/s

804.4 GTexel/s

Texture Rate

160.0 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

5.120 TFLOPS

1.609 TFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Navi 31

GPU Name

Grenada

Navi 31 XT (215-145000156)

GPU Variant

Grenada PRO (215-0880030)

RDNA 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 billion

Transistors

6.2 billion

529 mm²

Die Size

438 mm²

Board Design

300W

TDP

275W

700 W

Suggested PSU

600 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

6.3

Related GPU Comparisons

1

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 4070 Ti SUPER

2

AMD Radeon RX 7900 XT vs AMD Radeon Pro W6800X Duo

3

AMD Radeon RX 7900 XT vs AMD Radeon RX 7900M

4

AMD Radeon RX 7900 XT vs AMD Radeon RX 7950 XT

5

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 4070 Ti

6

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 4090

7

AMD Radeon RX 7900 XT vs AMD Radeon RX 7600 XT

8

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 3050 8 GB

9

AMD Radeon RX 7900 XT vs AMD FirePro W8000

10

AMD Radeon RX 7900 XT vs NVIDIA GeForce GTX 1080 Ti 12 GB

Related News

1

Time to Step Up, AMD and Intel! Nvidia Faces Antitrust Lawsuits in France, US, and EU

2

Intel Arrow Lake-S Features Dual Direct M.2 Slots: One PCIe 5.0 x4 and One PCIe 4.0 x4

3

AMD Ryzen 9000X3D Series to Feature Fully Unlocked Overclocking; DDR5-6400: The 'Sweet Spot' for Zen 5 Memory Speeds

4

Intel Z890 Motherboard Specs Leaked: Farewell to DDR4 Memory

5

AMD Ryzen 9000 Series Now Available for Pre-order in Europe: 9950X Priced at €660, Shipping by August 2

6

AMD's Latest Breakthrough Technology Could Change the Game in the Future

7

Researchers Utilize NVIDIA Omniverse Platform to Analyze and Improve 3D Stacked Chip Designs

8

TSMC to Receive Over 60 EUV Lithography Machines Over the Next Two Years, Investing More Than $12.3 Billion

9

Samsung's Own 3nm Yield is Disheartening: Galaxy S25 May Introduce MediaTek for the First Time

10

AMD Ryzen 9000 DDR5 Memory Frequency Soars: Reaches 8000MHz with All Four Slots Occupied