AMD Radeon VII vs AMD Radeon HD 6450

VS

AMD Radeon VII

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 16GB VRAM Radeon VII 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 VII 's Advantages

Released 7 years and 10 months late

Boost Clock1750MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (1020GB/s vs 25.60GB/s)

3680 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 295W)

Score

Benchmark

FP32 (float)

Radeon VII +6620%

13.44 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon VII

VS

Radeon HD 6450

Graphics Card

Feb 2019

Release Date

Apr 2011

Vega II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1400 MHz

Base Clock

-

1750 MHz

Boost Clock

-

1000 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

512MB

HBM2

Memory Type

GDDR5

4096bit

Memory Bus

64bit

1020GB/s

Bandwidth

25.60GB/s

Render Config

60

Compute Units

2

-

3840

Shading Units

160

240

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

128 KB

-

Theoretical Performance

112.0 GPixel/s

Pixel Rate

2.500 GPixel/s

420.0 GTexel/s

Texture Rate

5.000 GTexel/s

26.88 TFLOPS

FP16 (half)

-

13.44 TFLOPS

FP32 (float)

200.0 GFLOPS

3.360 TFLOPS

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 20

GPU Name

Caicos

Vega 20 XT

GPU Variant

Caicos PRO

GCN 5.1

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

13.23 billion

Transistors

0.37 billion

331 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

1.3

Vulkan

N/A

-

6.7

Shader Model

5.0

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