AMD Radeon RX 6600 vs AMD Radeon R9 270 1024SP

VS

AMD Radeon RX 6600 AMD Radeon R9 270 1024SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 2GB VRAM Radeon R9 270 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 6 years and 7 months late

Boost Clock has increased by 169% (2491MHz vs 925MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (224.0GB/s vs 153.6GB/s)

768 additional rendering cores

Lower TDP (132W vs 150W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +371%

8.928 TFLOPS

Radeon R9 270 1024SP

1.894 TFLOPS

Radeon RX 6600

VS

Radeon R9 270 1024SP

Graphics Card

Oct 2021

Release Date

Mar 2015

Navi II

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

900 MHz

2491 MHz

Boost Clock

925 MHz

1750 MHz

Memory Clock

1200 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

153.6GB/s

Render Config

-

SM Count

-

28

Compute Units

16

1792

Shading Units

1024

112

TMUs

64

ROPs

32

-

Tensor Cores

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

Theoretical Performance

159.4 GPixel/s

Pixel Rate

29.60 GPixel/s

279.0 GTexel/s

Texture Rate

59.20 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

1.894 TFLOPS

558.0 GFLOPS

FP64 (double)

118.4 GFLOPS

Graphics Processor

Navi 23

GPU Name

Pitcairn

Navi 23 XL (215-130000016)

GPU Variant

Pitcairn PRO (215-0828062)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

2.8 billion

237 mm²

Die Size

212 mm²

Board Design

132W

TDP

150W

300 W

Suggested PSU

450 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

5.1

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