AMD Radeon RX 6750 XT vs AMD Radeon R9 390 X2

VS

AMD Radeon RX 6750 XT AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 12GB VRAM Radeon RX 6750 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 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 RX 6750 XT +159%

13.31 TFLOPS

Radeon R9 390 X2

5.12 TFLOPS

Radeon RX 6750 XT

VS

Radeon R9 390 X2

Graphics Card

Mar 2022

Release Date

Sep 2015

Navi II

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2150 MHz

Base Clock

-

2600 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

-

SM Count

-

40

Compute Units

40

2560

Shading Units

2560

160

TMUs

160

64

ROPs

64

-

Tensor Cores

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

1024 KB

Theoretical Performance

166.4 GPixel/s

Pixel Rate

64.00 GPixel/s

416.0 GTexel/s

Texture Rate

160.0 GTexel/s

26.62 TFLOPS

FP16 (half)

-

13.31 TFLOPS

FP32 (float)

5.120 TFLOPS

832.0 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Navi 22

GPU Name

Grenada

Navi 22 KXT (215-127000144)

GPU Variant

Grenada PRO (215-0880030)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

17.2 billion

Transistors

6.2 billion

335 mm²

Die Size

438 mm²

Board Design

250W

TDP

580W

600 W

Suggested PSU

950 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

4x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.3

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