AMD Radeon HD 8490 OEM vs AMD Radeon RX 6600 LE

VS

AMD Radeon HD 8490 OEM

AMD Radeon RX 6600 LE

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 8GB VRAM Radeon RX 6600 LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8490 OEM 's Advantages

Lower TDP (35W vs 132W)

AMD Radeon RX 6600 LE 's Advantages

Released 10 years and 5 months late

Boost Clock2495MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 14.40GB/s)

1632 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon RX 6600 LE +3093%

8.942 TFLOPS

Radeon HD 8490 OEM

VS

Radeon RX 6600 LE

Graphics Card

Jul 2013

Release Date

Dec 2023

Sea Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1626 MHz

-

Boost Clock

2495 MHz

900 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

8GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

224.0GB/s

Render Config

2

Compute Units

28

-

160

Shading Units

1792

8

TMUs

112

4

ROPs

64

-

RT Cores

28

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

3.500 GPixel/s

Pixel Rate

159.7 GPixel/s

7.000 GTexel/s

Texture Rate

279.4 GTexel/s

-

FP16 (half)

17.88 TFLOPS

280.0 GFLOPS

FP32 (float)

8.942 TFLOPS

-

FP64 (double)

558.9 GFLOPS

Board Design

35W

TDP

132W

200 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1.1

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Caicos

GPU Name

Navi 23

Caicos XTX

GPU Variant

Navi 23 XL (215-130000016)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.37 billion

Transistors

11.06 billion

67 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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