AMD Radeon RX 7700 XT vs AMD Radeon R9 390 X2

VS

AMD Radeon RX 7700 XT

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 7700 XT and 8GB VRAM Radeon R9 390 X2 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 7 years and 11 months late

Boost Clock2544MHz

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (432.0GB/s vs 345.6GB/s)

896 additional rendering cores

Lower TDP (245W vs 580W)

Score

Benchmark

FP32 (float)

Radeon RX 7700 XT +586%

35.17 TFLOPS

Radeon R9 390 X2

5.12 TFLOPS

Radeon RX 7700 XT

VS

Radeon R9 390 X2

Graphics Card

Aug 2023

Release Date

Sep 2015

Navi III

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1435 MHz

Base Clock

-

2544 MHz

Boost Clock

-

2250 MHz

Memory Clock

1350 MHz

Memory

12GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

512bit

432.0GB/s

Bandwidth

345.6GB/s

Render Config

54

Compute Units

40

-

3456

Shading Units

2560

216

TMUs

160

96

ROPs

64

-

54

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

48 MB

L3 Cache

-

Theoretical Performance

244.2 GPixel/s

Pixel Rate

64.00 GPixel/s

549.5 GTexel/s

Texture Rate

160.0 GTexel/s

70.34 TFLOPS

FP16 (half)

-

35.17 TFLOPS

FP32 (float)

5.120 TFLOPS

1099 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

245W

TDP

580W

550 W

Suggested PSU

950 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

4x 8-pin

Graphics Processor

Navi 32

GPU Name

Grenada

Navi 32 XL (215-180000076)

GPU Variant

Grenada PRO (215-0880030)

RDNA 3.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

28.1 billion

Transistors

6.2 billion

346 mm²

Die Size

438 mm²

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

-

6.7

Shader Model

6.3

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