AMD Radeon HD 8990 OEM vs AMD Radeon RX 6650 XT

VS

AMD Radeon HD 8990 OEM

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8990 OEM 's Advantages

Larger VRAM bandwidth (288.0GB/s vs 280.3GB/s)

AMD Radeon RX 6650 XT 's Advantages

Released 9 years and 1 months late

Boost Clock has increased by 164% (2635MHz vs 1000MHz)

More VRAM (8GB vs 3GB)

Lower TDP (176W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 8990 OEM

4.096 TFLOPS

Radeon RX 6650 XT +163%

10.79 TFLOPS

Radeon HD 8990 OEM

VS

Radeon RX 6650 XT

Graphics Card

Apr 2013

Release Date

May 2022

Sea Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

950 MHz

Base Clock

2055 MHz

1000 MHz

Boost Clock

2635 MHz

1500 MHz

Memory Clock

2190 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

280.3GB/s

Render Config

32

Compute Units

32

-

2048

Shading Units

2048

128

TMUs

128

32

ROPs

64

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

168.6 GPixel/s

128.0 GTexel/s

Texture Rate

337.3 GTexel/s

-

FP16 (half)

21.59 TFLOPS

4.096 TFLOPS

FP32 (float)

10.79 TFLOPS

1024 GFLOPS

FP64 (double)

674.6 GFLOPS

Board Design

375W

TDP

176W

750 W

Suggested PSU

450 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Malta

GPU Name

Navi 23

Malta XT (215-0849026)

GPU Variant

Navi 23 KXT (215-130000136)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

11.06 billion

365 mm²

Die Size

237 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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