ATI Radeon HD 4650 vs AMD Radeon HD 6450

VS

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 4650 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4650 's Advantages

160 additional rendering cores

AMD Radeon HD 6450 's Advantages

Released 2 years and 7 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (25.60GB/s vs 22.40GB/s)

Lower TDP (18W vs 48W)

Score

Benchmark

FP32 (float)

Radeon HD 4650 +92%

0.384 TFLOPS

Radeon HD 6450

0.2 TFLOPS

Radeon HD 4650

VS

Radeon HD 6450

Graphics Card

Sep 2008

Release Date

Apr 2011

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

700 MHz

Memory Clock

800 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

64bit

22.40GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

4

Compute Units

2

320

Shading Units

160

32

TMUs

8

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

128 KB

Theoretical Performance

4.800 GPixel/s

Pixel Rate

2.500 GPixel/s

19.20 GTexel/s

Texture Rate

5.000 GTexel/s

-

FP16 (half)

-

384.0 GFLOPS

FP32 (float)

200.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

RV730

GPU Name

Caicos

RV730 PRO (215-0719056)

GPU Variant

Caicos PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

0.37 billion

146 mm²

Die Size

67 mm²

Board Design

48W

TDP

18W

200 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

-

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

5.0

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