AMD Radeon RX Vega 64 vs AMD Radeon HD 6450

VS

AMD Radeon RX Vega 64

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 64 and 512MB VRAM Radeon HD 6450 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 6 years and 4 months late

Boost Clock1546MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (483.8GB/s vs 25.60GB/s)

3936 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 295W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 64 +6230%

12.66 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon RX Vega 64

VS

Radeon HD 6450

Graphics Card

Aug 2017

Release Date

Apr 2011

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

800 MHz

Memory

8GB

Memory Size

512MB

HBM2

Memory Type

GDDR5

2048bit

Memory Bus

64bit

483.8GB/s

Bandwidth

25.60GB/s

Render Config

64

Compute Units

2

-

4096

Shading Units

160

256

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

128 KB

-

Theoretical Performance

98.94 GPixel/s

Pixel Rate

2.500 GPixel/s

395.8 GTexel/s

Texture Rate

5.000 GTexel/s

25.33 TFLOPS

FP16 (half)

-

12.66 TFLOPS

FP32 (float)

200.0 GFLOPS

791.6 GFLOPS

FP64 (double)

-

Board Design

295W

TDP

18W

600 W

Suggested PSU

200 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Processor

Vega 10

GPU Name

Caicos

Vega 10 XT (215-0894200)

GPU Variant

Caicos PRO

GCN 5.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

12.5 billion

Transistors

0.37 billion

495 mm²

Die Size

67 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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