ATI Radeon HD 2900 PRO vs AMD Radeon RX 6600 XT

VS

ATI Radeon HD 2900 PRO

AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 PRO and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 XT 's Advantages

Released 13 years and 7 months late

Boost Clock2589MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 51.20GB/s)

1728 additional rendering cores

Lower TDP (160W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 PRO

0.384 TFLOPS

Radeon RX 6600 XT +2660%

10.6 TFLOPS

Radeon HD 2900 PRO

VS

Radeon RX 6600 XT

Graphics Card

Dec 2007

Release Date

Jul 2021

Radeon R600

Generation

Navi II

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1968 MHz

-

Boost Clock

2589 MHz

800 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR6

256bit

Memory Bus

128bit

51.20GB/s

Bandwidth

256.0GB/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

128 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

9.600 GPixel/s

Pixel Rate

165.7 GPixel/s

9.600 GTexel/s

Texture Rate

331.4 GTexel/s

-

FP16 (half)

21.21 TFLOPS

384.0 GFLOPS

FP32 (float)

10.60 TFLOPS

-

FP64 (double)

662.8 GFLOPS

Board Design

200W

TDP

160W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

R600

GPU Name

Navi 23

R600 PRO (215RGMDKA13FG)

GPU Variant

Navi 23 XT (215-130000006)

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

6.7

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