AMD Radeon HD 7770 GHz Edition vs AMD Radeon RX Vega 64

VS

AMD Radeon HD 7770 GHz Edition

AMD Radeon RX Vega 64

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 8GB VRAM Radeon RX Vega 64 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages

Lower TDP (80W vs 295W)

AMD Radeon RX Vega 64 's Advantages

Released 5 years and 6 months late

Boost Clock1546MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (483.8GB/s vs 72.00GB/s)

3456 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7770 GHz Edition

1.28 TFLOPS

Radeon RX Vega 64 +889%

12.66 TFLOPS

Radeon HD 7770 GHz Edition

VS

Radeon RX Vega 64

Graphics Card

Feb 2012

Release Date

Aug 2017

Southern Islands

Generation

Vega

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1247 MHz

-

Boost Clock

1546 MHz

1125 MHz

Memory Clock

945 MHz

Memory

1024MB

Memory Size

8GB

GDDR5

Memory Type

HBM2

128bit

Memory Bus

2048bit

72.00GB/s

Bandwidth

483.8GB/s

Render Config

10

Compute Units

64

-

640

Shading Units

4096

40

TMUs

256

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

98.94 GPixel/s

40.00 GTexel/s

Texture Rate

395.8 GTexel/s

-

FP16 (half)

25.33 TFLOPS

1280 GFLOPS

FP32 (float)

12.66 TFLOPS

80.00 GFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

80W

TDP

295W

250 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

Power Connectors

2x 8-pin

Graphics Processor

Cape Verde

GPU Name

Vega 10

Cape Verde XT

GPU Variant

Vega 10 XT (215-0894200)

GCN 1.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

1.5 billion

Transistors

12.5 billion

123 mm²

Die Size

495 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.2

-

5.1

Shader Model

6.4

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