AMD Radeon R9 390X vs AMD Radeon RX 6750 GRE

VS

AMD Radeon R9 390X AMD Radeon RX 6750 GRE

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

Main Differences

AMD Radeon R9 390X 's Advantages

256 additional rendering cores

AMD Radeon RX 6750 GRE 's Advantages

Released 8 years and 4 months late

Boost Clock2581MHz

More VRAM (12GB vs 8GB)

Larger VRAM bandwidth (432.0GB/s vs 384.0GB/s)

Lower TDP (250W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X

5.914 TFLOPS

Radeon RX 6750 GRE +123%

13.21 TFLOPS

Radeon R9 390X

VS

Radeon RX 6750 GRE

Graphics Card

Jun 2015

Release Date

Oct 2023

Pirate Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2321 MHz

-

Boost Clock

2581 MHz

1500 MHz

Memory Clock

2250 MHz

Memory

8GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

192bit

384.0GB/s

Bandwidth

432.0GB/s

Render Config

-

SM Count

-

44

Compute Units

40

2816

Shading Units

2560

176

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

67.20 GPixel/s

Pixel Rate

165.2 GPixel/s

184.8 GTexel/s

Texture Rate

413.0 GTexel/s

-

FP16 (half)

26.43 TFLOPS

5.914 TFLOPS

FP32 (float)

13.21 TFLOPS

739.2 GFLOPS

FP64 (double)

825.9 GFLOPS

Graphics Processor

Grenada

GPU Name

Navi 22

Grenada XT (215-0880004)

GPU Variant

Navi 22 KXT

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

275W

TDP

250W

600 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 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

6.7

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