AMD Radeon RX 6900 XTX vs AMD Radeon R9 Nano

VS

AMD Radeon RX 6900 XTX AMD Radeon R9 Nano

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 4GB VRAM Radeon R9 Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 512.0GB/s)

1024 additional rendering cores

AMD Radeon R9 Nano 's Advantages

Lower TDP (175W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +204%

24.93 TFLOPS

Radeon R9 Nano

8.192 TFLOPS

Radeon RX 6900 XTX

VS

Radeon R9 Nano

Graphics Card

Unknown

Release Date

Aug 2015

Navi II

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

500 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

HBM

256bit

Memory Bus

4096bit

576.0GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

-

80

Compute Units

64

5120

Shading Units

4096

320

TMUs

256

128

ROPs

64

-

Tensor Cores

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

2 MB

Theoretical Performance

311.7 GPixel/s

Pixel Rate

64.00 GPixel/s

779.2 GTexel/s

Texture Rate

256.0 GTexel/s

49.87 TFLOPS

FP16 (half)

8.192 TFLOPS

24.93 TFLOPS

FP32 (float)

8.192 TFLOPS

1.558 TFLOPS

FP64 (double)

512.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

Fiji

Navi 21 XTXH (215-121000247)

GPU Variant

Fiji XT CA (215-0862120)

RDNA 2.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

8.9 billion

520 mm²

Die Size

596 mm²

Board Design

330W

TDP

175W

700 W

Suggested PSU

450 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

1x HDMI 1.4a 3x DisplayPort 1.2

2x 8-pin

Power Connectors

1x 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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