AMD Radeon RX 6900 XTX vs ATI Radeon HD 3650

VS

AMD Radeon RX 6900 XTX

ATI Radeon HD 3650

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 256MB VRAM Radeon HD 3650 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 256GB)

Larger VRAM bandwidth (576.0GB/s vs 25.60GB/s)

5000 additional rendering cores

ATI Radeon HD 3650 's Advantages

Lower TDP (65W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +14227%

24.93 TFLOPS

Radeon HD 3650

0.174 TFLOPS

Radeon RX 6900 XTX

VS

Radeon HD 3650

Graphics Card

Unknown

Release Date

Jan 2008

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

25.60GB/s

Render Config

80

Compute Units

3

-

5120

Shading Units

120

320

TMUs

8

128

ROPs

4

-

80

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

128 KB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

2.900 GPixel/s

779.2 GTexel/s

Texture Rate

5.800 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

174.0 GFLOPS

1.558 TFLOPS

FP64 (double)

-

Board Design

330W

TDP

65W

700 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

RV635

Navi 21 XTXH (215-121000247)

GPU Variant

RV635 PRO (215-0682008)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

26.8 billion

Transistors

0.378 billion

520 mm²

Die Size

135 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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