AMD Radeon HD 8490 OEM vs AMD Radeon RX 6800

VS

AMD Radeon HD 8490 OEM

AMD Radeon RX 6800

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 16GB VRAM Radeon RX 6800 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 250W)

AMD Radeon RX 6800 's Advantages

Released 7 years and 3 months late

Boost Clock2105MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 14.40GB/s)

3680 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon RX 6800 +5675%

16.17 TFLOPS

Radeon HD 8490 OEM

VS

Radeon RX 6800

Graphics Card

Jul 2013

Release Date

Oct 2020

Sea Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1700 MHz

-

Boost Clock

2105 MHz

900 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

16GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

512.0GB/s

Render Config

2

Compute Units

60

-

160

Shading Units

3840

8

TMUs

240

4

ROPs

96

-

RT Cores

60

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

3.500 GPixel/s

Pixel Rate

202.1 GPixel/s

7.000 GTexel/s

Texture Rate

505.2 GTexel/s

-

FP16 (half)

32.33 TFLOPS

280.0 GFLOPS

FP32 (float)

16.17 TFLOPS

-

FP64 (double)

1010 GFLOPS

Board Design

35W

TDP

250W

200 W

Suggested PSU

600 W

1x DVI 1x DisplayPort 1.1

Outputs

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

None

Power Connectors

2x 8-pin

Graphics Processor

Caicos

GPU Name

Navi 21

Caicos XTX

GPU Variant

Navi 21 XL (215-121000187)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.37 billion

Transistors

26.8 billion

67 mm²

Die Size

520 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

6.5

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