AMD Radeon RX Vega 64 vs AMD Radeon HD 6770 Green Edition

VS

AMD Radeon RX Vega 64

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 64 and 2GB VRAM Radeon HD 6770 Green Edition 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 4 years and 4 months late

Boost Clock1546MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (483.8GB/s vs 21.34GB/s)

3376 additional rendering cores

AMD Radeon HD 6770 Green Edition 's Advantages

Lower TDP (86W vs 295W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 64 +1155%

12.66 TFLOPS

Radeon HD 6770 Green Edition

1.008 TFLOPS

Radeon RX Vega 64

VS

Radeon HD 6770 Green Edition

Graphics Card

Aug 2017

Release Date

Apr 2013

Vega

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1247 MHz

Base Clock

-

1546 MHz

Boost Clock

-

945 MHz

Memory Clock

667 MHz

Memory

8GB

Memory Size

2GB

HBM2

Memory Type

GDDR3

2048bit

Memory Bus

128bit

483.8GB/s

Bandwidth

21.34GB/s

Render Config

64

Compute Units

9

-

4096

Shading Units

720

256

TMUs

36

64

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

256 KB

-

Theoretical Performance

98.94 GPixel/s

Pixel Rate

11.20 GPixel/s

395.8 GTexel/s

Texture Rate

25.20 GTexel/s

25.33 TFLOPS

FP16 (half)

-

12.66 TFLOPS

FP32 (float)

1008 GFLOPS

791.6 GFLOPS

FP64 (double)

-

Board Design

295W

TDP

86W

600 W

Suggested PSU

250 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

2x 8-pin

Power Connectors

-

Graphics Processor

Vega 10

GPU Name

Juniper

Vega 10 XT (215-0894200)

GPU Variant

Juniper LE (215-0754009)

GCN 5.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

12.5 billion

Transistors

1.04 billion

495 mm²

Die Size

166 mm²

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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