AMD Radeon RX 7700 XT vs AMD Radeon HD 6390

VS

AMD Radeon RX 7700 XT

AMD Radeon HD 6390

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 XT and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7700 XT 's Advantages

Released 12 years and 1 months late

Boost Clock2544MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (432.0GB/s vs 16.00GB/s)

3136 additional rendering cores

AMD Radeon HD 6390 's Advantages

Lower TDP (39W vs 245W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +9891%

35.17 TFLOPS

Radeon HD 6390

0.352 TFLOPS

Radeon RX 7700 XT

VS

Radeon HD 6390

Graphics Card

Aug 2023

Release Date

Jul 2011

Navi III

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1435 MHz

Base Clock

-

2544 MHz

Boost Clock

-

2250 MHz

Memory Clock

500 MHz

Memory

12GB

Memory Size

1024MB

GDDR6

Memory Type

DDR2

192bit

Memory Bus

128bit

432.0GB/s

Bandwidth

16.00GB/s

Render Config

54

Compute Units

4

-

3456

Shading Units

320

216

TMUs

16

96

ROPs

8

-

54

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

48 MB

L3 Cache

-

Theoretical Performance

244.2 GPixel/s

Pixel Rate

4.400 GPixel/s

549.5 GTexel/s

Texture Rate

8.800 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

352.0 GFLOPS

1099 GFLOPS

FP64 (double)

-

Board Design

245W

TDP

39W

550 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 32

GPU Name

Redwood

Navi 32 XL (215-180000076)

GPU Variant

Redwood LE

RDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

0.627 billion

346 mm²

Die Size

104 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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