AMD Radeon RX 6600 LE vs AMD Radeon HD 7970

VS

AMD Radeon RX 6600 LE

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 3GB VRAM Radeon HD 7970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 LE 's Advantages

Released 12 years late

Boost Clock2495MHz

More VRAM (8GB vs 3GB)

Lower TDP (132W vs 250W)

AMD Radeon HD 7970 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 224.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 LE +135%

8.942 TFLOPS

Radeon HD 7970

3.789 TFLOPS

Radeon RX 6600 LE

VS

Radeon HD 7970

Graphics Card

Dec 2023

Release Date

Dec 2011

Navi II

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

-

2495 MHz

Boost Clock

-

1750 MHz

Memory Clock

1375 MHz

Memory

8GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

384bit

224.0GB/s

Bandwidth

264.0GB/s

Render Config

28

Compute Units

32

-

1792

Shading Units

2048

112

TMUs

128

64

ROPs

32

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

768 KB

32 MB

L3 Cache

-

Theoretical Performance

159.7 GPixel/s

Pixel Rate

29.60 GPixel/s

279.4 GTexel/s

Texture Rate

118.4 GTexel/s

17.88 TFLOPS

FP16 (half)

-

8.942 TFLOPS

FP32 (float)

3.789 TFLOPS

558.9 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

132W

TDP

250W

300 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 23

GPU Name

Tahiti

Navi 23 XL (215-130000016)

GPU Variant

Tahiti XT (215-0821060)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

4.313 billion

237 mm²

Die Size

352 mm²

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

-

6.7

Shader Model

5.1

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