AMD Radeon HD 6450 OEM vs ATI Radeon HD 4580

VS

AMD Radeon HD 6450 OEM ATI Radeon HD 4580

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 512MB VRAM Radeon HD 4580 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

40 additional rendering cores

Lower TDP (18W vs 65W)

ATI Radeon HD 4580 's Advantages

Released 9 months late

Larger VRAM bandwidth (22.18GB/s vs 8.528GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM +4%

0.2 TFLOPS

Radeon HD 4580

0.191 TFLOPS

Radeon HD 6450 OEM

VS

Radeon HD 4580

Graphics Card

Feb 2011

Release Date

Nov 2011

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

533 MHz

Memory Clock

693 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

64bit

Memory Bus

128bit

8.528GB/s

Bandwidth

22.18GB/s

Render Config

-

SM Count

-

2

Compute Units

3

160

Shading Units

120

8

TMUs

8

4

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

128 KB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

3.184 GPixel/s

5.000 GTexel/s

Texture Rate

6.368 GTexel/s

-

FP16 (half)

-

200.0 GFLOPS

FP32 (float)

191.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Caicos

GPU Name

RV635

Junbonator

GPU Variant

RV635 PRO (215-0682008)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.378 billion

67 mm²

Die Size

135 mm²

Board Design

18W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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