AMD Radeon R9 390 X2 vs AMD Radeon RX 6750 XT

VS

AMD Radeon R9 390 X2 AMD Radeon RX 6750 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 12GB VRAM Radeon RX 6750 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6750 XT 's Advantages

Released 6 years and 6 months late

Boost Clock2600MHz

More VRAM (12GB vs 8GB)

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

Lower TDP (250W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2

5.12 TFLOPS

Radeon RX 6750 XT +159%

13.31 TFLOPS

Radeon R9 390 X2

VS

Radeon RX 6750 XT

Graphics Card

Sep 2015

Release Date

Mar 2022

Pirate Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2150 MHz

-

Boost Clock

2600 MHz

1350 MHz

Memory Clock

2250 MHz

Memory

8GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

192bit

345.6GB/s

Bandwidth

432.0GB/s

Render Config

-

SM Count

-

40

Compute Units

40

2560

Shading Units

2560

160

TMUs

160

64

ROPs

64

-

Tensor Cores

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

3 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

166.4 GPixel/s

160.0 GTexel/s

Texture Rate

416.0 GTexel/s

-

FP16 (half)

26.62 TFLOPS

5.120 TFLOPS

FP32 (float)

13.31 TFLOPS

640.0 GFLOPS

FP64 (double)

832.0 GFLOPS

Graphics Processor

Grenada

GPU Name

Navi 22

Grenada PRO (215-0880030)

GPU Variant

Navi 22 KXT (215-127000144)

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

6.2 billion

Transistors

17.2 billion

438 mm²

Die Size

335 mm²

Board Design

580W

TDP

250W

950 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

4x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

6.3

Shader Model

6.5

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