AMD Radeon RX Vega 64 vs AMD Radeon HD 7970

VS

AMD Radeon RX Vega 64

AMD Radeon HD 7970

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 64 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 Vega 64 's Advantages

Released 5 years and 8 months late

Boost Clock1546MHz

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (483.8GB/s vs 264.0GB/s)

2048 additional rendering cores

AMD Radeon HD 7970 's Advantages

Lower TDP (250W vs 295W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 64 +234%

12.66 TFLOPS

Radeon HD 7970

3.789 TFLOPS

3DMark Time Spy

Radeon RX Vega 64 +230%

7522

Radeon HD 7970

2279

Radeon RX Vega 64

VS

Radeon HD 7970

Graphics Card

Aug 2017

Release Date

Dec 2011

Vega

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1247 MHz

Base Clock

-

1546 MHz

Boost Clock

-

945 MHz

Memory Clock

1375 MHz

Memory

8GB

Memory Size

3GB

HBM2

Memory Type

GDDR5

2048bit

Memory Bus

384bit

483.8GB/s

Bandwidth

264.0GB/s

Render Config

64

Compute Units

32

-

4096

Shading Units

2048

256

TMUs

128

64

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

-

Theoretical Performance

98.94 GPixel/s

Pixel Rate

29.60 GPixel/s

395.8 GTexel/s

Texture Rate

118.4 GTexel/s

25.33 TFLOPS

FP16 (half)

-

12.66 TFLOPS

FP32 (float)

3.789 TFLOPS

791.6 GFLOPS

FP64 (double)

947.2 GFLOPS

Board Design

295W

TDP

250W

600 W

Suggested PSU

600 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Vega 10

GPU Name

Tahiti

Vega 10 XT (215-0894200)

GPU Variant

Tahiti XT (215-0821060)

GCN 5.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

12.5 billion

Transistors

4.313 billion

495 mm²

Die Size

352 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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