AMD Radeon HD 6390 vs AMD Radeon RX 8800 XT

VS

AMD Radeon HD 6390

AMD Radeon RX 8800 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 16GB VRAM Radeon RX 8800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 220W)

AMD Radeon RX 8800 XT 's Advantages

Boost Clock2430MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (624.1GB/s vs 16.00GB/s)

3776 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon RX 8800 XT +5556%

19.91 TFLOPS

Radeon HD 6390

VS

Radeon RX 8800 XT

Graphics Card

Jul 2011

Release Date

Unknown

Northern Islands

Generation

Navi IV(RX 8000)

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1295 MHz

-

Boost Clock

2430 MHz

500 MHz

Memory Clock

2438 MHz

Memory

1024MB

Memory Size

16GB

DDR2

Memory Type

GDDR6

128bit

Memory Bus

256bit

16.00GB/s

Bandwidth

624.1GB/s

Render Config

4

Compute Units

64

-

320

Shading Units

4096

16

TMUs

256

8

ROPs

96

-

RT Cores

64

8 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

4 MB

-

L3 Cache

64 MB

Theoretical Performance

4.400 GPixel/s

Pixel Rate

233.3 GPixel/s

8.800 GTexel/s

Texture Rate

622.1 GTexel/s

-

FP16 (half)

39.81 TFLOPS

352.0 GFLOPS

FP32 (float)

19.91 TFLOPS

-

FP64 (double)

622.1 GFLOPS

Board Design

39W

TDP

220W

200 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 2.1a3x DisplayPort 2.1

None

Power Connectors

2x 8-pin

Graphics Processor

Redwood

GPU Name

Navi 48

Redwood LE

GPU Variant

Navi 48 XT

TeraScale 2

Architecture

RDNA 4.0

TSMC

Foundry

TSMC

40 nm

Process Size

4 nm

0.627 billion

Transistors

Unknown

104 mm²

Die Size

Unknown

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.2

N/A

Vulkan

1.3

-

5.0

Shader Model

6.8

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