AMD Radeon HD 7970 vs AMD Radeon VII

VS

AMD Radeon HD 7970

AMD Radeon VII

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 16GB VRAM Radeon VII to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 295W)

AMD Radeon VII 's Advantages

Released 7 years and 2 months late

Boost Clock1750MHz

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (1020GB/s vs 264.0GB/s)

1792 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Radeon VII +254%

13.44 TFLOPS

3DMark Time Spy

Radeon HD 7970

2279

Radeon VII +308%

9319

Radeon HD 7970

VS

Radeon VII

Graphics Card

Dec 2011

Release Date

Feb 2019

Southern Islands

Generation

Vega II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1400 MHz

-

Boost Clock

1750 MHz

1375 MHz

Memory Clock

1000 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

HBM2

384bit

Memory Bus

4096bit

264.0GB/s

Bandwidth

1020GB/s

Render Config

32

Compute Units

60

-

2048

Shading Units

3840

128

TMUs

240

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

4 MB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

112.0 GPixel/s

118.4 GTexel/s

Texture Rate

420.0 GTexel/s

-

FP16 (half)

26.88 TFLOPS

3.789 TFLOPS

FP32 (float)

13.44 TFLOPS

947.2 GFLOPS

FP64 (double)

3.360 TFLOPS

Board Design

250W

TDP

295W

600 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

Vega 20

Tahiti XT (215-0821060)

GPU Variant

Vega 20 XT

GCN 1.0

Architecture

GCN 5.1

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

13.23 billion

352 mm²

Die Size

331 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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