AMD Radeon R9 295X2 vs AMD Radeon RX 6600

VS

AMD Radeon R9 295X2

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 295X2 and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Larger VRAM bandwidth (320.0GB/s vs 224.0GB/s)

1024 additional rendering cores

AMD Radeon RX 6600 's Advantages

Released 7 years and 6 months late

Boost Clock2491MHz

More VRAM (8GB vs 4GB)

Lower TDP (132W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2

5.733 TFLOPS

Radeon RX 6600 +55%

8.928 TFLOPS

Radeon R9 295X2

VS

Radeon RX 6600

Graphics Card

Apr 2014

Release Date

Oct 2021

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1626 MHz

-

Boost Clock

2491 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

128bit

320.0GB/s

Bandwidth

224.0GB/s

Render Config

44

Compute Units

28

-

2816

Shading Units

1792

176

TMUs

112

64

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

65.15 GPixel/s

Pixel Rate

159.4 GPixel/s

179.2 GTexel/s

Texture Rate

279.0 GTexel/s

-

FP16 (half)

17.86 TFLOPS

5.733 TFLOPS

FP32 (float)

8.928 TFLOPS

716.7 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

500W

TDP

132W

900 W

Suggested PSU

300 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

Vesuvius

GPU Name

Navi 23

Vesuvius XT (215-0852022)

GPU Variant

Navi 23 XL (215-130000016)

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

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

-

6.3

Shader Model

6.5

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