AMD Radeon HD 6450 OEM vs ATI Radeon HD 5870 Mac Edition

VS

AMD Radeon HD 6450 OEM ATI Radeon HD 5870 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 1024MB VRAM Radeon HD 5870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

Released 8 months late

Lower TDP (18W vs 228W)

ATI Radeon HD 5870 Mac Edition 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (153.0GB/s vs 8.528GB/s)

1440 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon HD 5870 Mac Edition +1260%

2.72 TFLOPS

Radeon HD 6450 OEM

VS

Radeon HD 5870 Mac Edition

Graphics Card

Feb 2011

Release Date

Jun 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

533 MHz

Memory Clock

1195 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

153.0GB/s

Render Config

-

SM Count

-

2

Compute Units

20

160

Shading Units

1600

8

TMUs

80

4

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

27.20 GPixel/s

5.000 GTexel/s

Texture Rate

68.00 GTexel/s

-

FP16 (half)

-

200.0 GFLOPS

FP32 (float)

2.720 TFLOPS

-

FP64 (double)

544.0 GFLOPS

Graphics Processor

Caicos

GPU Name

Cypress

Junbonator

GPU Variant

Cypress XT (215-0735033)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.37 billion

Transistors

2.154 billion

67 mm²

Die Size

334 mm²

Board Design

18W

TDP

228W

200 W

Suggested PSU

550 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 2x mini-DisplayPort 1.1

None

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

5.0

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