AMD Radeon R9 290X2 vs AMD Radeon RX 6600 XT

VS

AMD Radeon R9 290X2 AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 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 R9 290X2 's Advantages

Larger VRAM bandwidth (345.6GB/s vs 256.0GB/s)

768 additional rendering cores

AMD Radeon RX 6600 XT 's Advantages

Released 7 years and 1 months late

Boost Clock2589MHz

More VRAM (8GB vs 4GB)

Lower TDP (160W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 290X2

5.632 TFLOPS

Radeon RX 6600 XT +88%

10.6 TFLOPS

Radeon R9 290X2

VS

Radeon RX 6600 XT

Graphics Card

Jun 2014

Release Date

Jul 2021

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1968 MHz

-

Boost Clock

2589 MHz

1350 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

256.0GB/s

Render Config

-

SM Count

-

44

Compute Units

32

2816

Shading Units

2048

176

TMUs

128

64

ROPs

64

-

Tensor Cores

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

2 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

165.7 GPixel/s

176.0 GTexel/s

Texture Rate

331.4 GTexel/s

-

FP16 (half)

21.21 TFLOPS

5.632 TFLOPS

FP32 (float)

10.60 TFLOPS

704.0 GFLOPS

FP64 (double)

662.8 GFLOPS

Graphics Processor

Hawaii

GPU Name

Navi 23

Hawaii XT (215-0852000)

GPU Variant

Navi 23 XT (215-130000006)

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

6.2 billion

Transistors

11.06 billion

438 mm²

Die Size

237 mm²

Board Design

580W

TDP

160W

950 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

4x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

CUDA

-

6.3

Shader Model

6.7

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