AMD Radeon RX 6950 XT vs AMD Radeon R9 390 X2

VS

AMD Radeon RX 6950 XT AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6950 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 6950 XT 's Advantages

Released 6 years and 8 months late

Boost Clock2310MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (576.0GB/s vs 345.6GB/s)

2560 additional rendering cores

Lower TDP (335W vs 580W)

Score

Benchmark

FP32 (float)

Radeon RX 6950 XT +361%

23.65 TFLOPS

Radeon R9 390 X2

5.12 TFLOPS

Radeon RX 6950 XT

VS

Radeon R9 390 X2

Graphics Card

May 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

1860 MHz

Base Clock

-

2310 MHz

Boost Clock

-

2250 MHz

Memory Clock

1350 MHz

Memory

16GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

512bit

576.0GB/s

Bandwidth

345.6GB/s

Render Config

-

SM Count

-

80

Compute Units

40

5120

Shading Units

2560

320

TMUs

160

128

ROPs

64

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

1024 KB

Theoretical Performance

295.7 GPixel/s

Pixel Rate

64.00 GPixel/s

739.2 GTexel/s

Texture Rate

160.0 GTexel/s

47.31 TFLOPS

FP16 (half)

-

23.65 TFLOPS

FP32 (float)

5.120 TFLOPS

1478 GFLOPS

FP64 (double)

640.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

Grenada

Navi 21 KXTX (215-121000289)

GPU Variant

Grenada PRO (215-0880030)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

6.2 billion

520 mm²

Die Size

438 mm²

Board Design

335W

TDP

580W

700 W

Suggested PSU

950 W

1x HDMI 2.1 2x DisplayPort 1.4a

Outputs

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

2x 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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