AMD Radeon RX 6600 vs ATI Radeon HD 3690

VS

AMD Radeon RX 6600

ATI Radeon HD 3690

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 256MB VRAM Radeon HD 3690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 13 years and 7 months late

Boost Clock2491MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 26.56GB/s)

1472 additional rendering cores

ATI Radeon HD 3690 's Advantages

Lower TDP (75W vs 132W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +1981%

8.928 TFLOPS

Radeon HD 3690

0.429 TFLOPS

Radeon RX 6600

VS

Radeon HD 3690

Graphics Card

Oct 2021

Release Date

Mar 2008

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1626 MHz

Base Clock

-

2491 MHz

Boost Clock

-

1750 MHz

Memory Clock

830 MHz

Memory

8GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

26.56GB/s

Render Config

28

Compute Units

4

-

1792

Shading Units

320

112

TMUs

16

64

ROPs

16

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

128 KB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

10.72 GPixel/s

279.0 GTexel/s

Texture Rate

10.72 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

428.8 GFLOPS

558.0 GFLOPS

FP64 (double)

85.76 GFLOPS

Board Design

132W

TDP

75W

300 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 23

GPU Name

RV670

Navi 23 XL (215-130000016)

GPU Variant

RV670 PRO (215-0708003)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

11.06 billion

Transistors

0.666 billion

237 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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