AMD Radeon HD 7970 vs AMD Radeon RX 7700

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 12GB VRAM Radeon RX 7700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7700 's Advantages

Released 11 years and 1 months late

Boost Clock2600MHz

More VRAM (12GB vs 3GB)

Larger VRAM bandwidth (432.0GB/s vs 264.0GB/s)

1024 additional rendering cores

Lower TDP (200W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Radeon RX 7700 +743%

31.95 TFLOPS

Radeon HD 7970

VS

Radeon RX 7700

Graphics Card

Dec 2011

Release Date

Jan 2023

Southern Islands

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1900 MHz

-

Boost Clock

2600 MHz

1375 MHz

Memory Clock

2250 MHz

Memory

3GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

192bit

264.0GB/s

Bandwidth

432.0GB/s

Render Config

-

SM Count

-

32

Compute Units

48

2048

Shading Units

3072

128

TMUs

192

32

ROPs

96

-

Tensor Cores

-

RT Cores

48

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

2 MB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

249.6 GPixel/s

118.4 GTexel/s

Texture Rate

499.2 GTexel/s

-

FP16 (half)

63.90 TFLOPS

3.789 TFLOPS

FP32 (float)

31.95 TFLOPS

947.2 GFLOPS

FP64 (double)

998.4 GFLOPS

Graphics Processor

Tahiti

GPU Name

Navi 32

Tahiti XT (215-0821060)

GPU Variant

Navi 32

GCN 1.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

4.313 billion

Transistors

Unknown

352 mm²

Die Size

346 mm²

Board Design

250W

TDP

200W

600 W

Suggested PSU

550 W

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

Outputs

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.7

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