AMD Radeon HD 7970 vs AMD Radeon RX 6600

VS

AMD Radeon HD 7970

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 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 HD 7970 's Advantages

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

256 additional rendering cores

AMD Radeon RX 6600 's Advantages

Released 9 years and 10 months late

Boost Clock2491MHz

More VRAM (8GB vs 3GB)

Lower TDP (132W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Radeon RX 6600 +135%

8.928 TFLOPS

3DMark Time Spy

Radeon HD 7970

2279

Radeon RX 6600 +254%

8084

Radeon HD 7970

VS

Radeon RX 6600

Graphics Card

Dec 2011

Release Date

Oct 2021

Southern 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

1375 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

224.0GB/s

Render Config

32

Compute Units

28

-

2048

Shading Units

1792

128

TMUs

112

32

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

159.4 GPixel/s

118.4 GTexel/s

Texture Rate

279.0 GTexel/s

-

FP16 (half)

17.86 TFLOPS

3.789 TFLOPS

FP32 (float)

8.928 TFLOPS

947.2 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

250W

TDP

132W

600 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

Navi 23

Tahiti XT (215-0821060)

GPU Variant

Navi 23 XL (215-130000016)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

11.06 billion

352 mm²

Die Size

237 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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