ATI Radeon HD 2900 XTX vs AMD Radeon RX 6650 XT

VS

ATI Radeon HD 2900 XTX

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX 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 RX 6650 XT 's Advantages

Boost Clock2635MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (280.3GB/s vs 106.0GB/s)

1728 additional rendering cores

Lower TDP (176W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 6650 XT +2166%

10.79 TFLOPS

Radeon HD 2900 XTX

VS

Radeon RX 6650 XT

Graphics Card

Unknown

Release Date

May 2022

Radeon R600

Generation

Navi II

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2055 MHz

-

Boost Clock

2635 MHz

828 MHz

Memory Clock

2190 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR6

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

280.3GB/s

Render Config

4

Compute Units

32

-

320

Shading Units

2048

16

TMUs

128

16

ROPs

64

-

RT Cores

32

-

L1 Cache

128 KB per Array

256 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

11.89 GPixel/s

Pixel Rate

168.6 GPixel/s

11.89 GTexel/s

Texture Rate

337.3 GTexel/s

-

FP16 (half)

21.59 TFLOPS

475.5 GFLOPS

FP32 (float)

10.79 TFLOPS

-

FP64 (double)

674.6 GFLOPS

Board Design

240W

TDP

176W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

R600

GPU Name

Navi 23

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Navi 23 KXT (215-130000136)

TeraScale

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

80 nm

Process Size

7 nm

0.72 billion

Transistors

11.06 billion

420 mm²

Die Size

237 mm²

Graphics Features

10.0 (10_0)

DirectX

12 Ultimate (12_2)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.3

-

4.0

Shader Model

6.5

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