ATI Radeon HD 5450 PCIe x1 vs ATI Radeon HD 4870 Mac Edition

VS

ATI Radeon HD 5450 PCIe x1 ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 5450 PCIe x1 and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5450 PCIe x1 's Advantages

Released 1 years and 1 months late

Lower TDP (19W vs 150W)

ATI Radeon HD 4870 Mac Edition 's Advantages

Larger VRAM bandwidth (108.8GB/s vs 8.000GB/s)

720 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 4870 Mac Edition +1053%

1.2 TFLOPS

Radeon HD 5450 PCIe x1

VS

Radeon HD 4870 Mac Edition

Graphics Card

Feb 2010

Release Date

Jan 2009

Evergreen

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x1

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

500 MHz

Memory Clock

850 MHz

Memory

512MB

Memory Size

512MB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

108.8GB/s

Render Config

-

SM Count

-

2

Compute Units

10

80

Shading Units

800

8

TMUs

40

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

2.600 GPixel/s

Pixel Rate

12.00 GPixel/s

5.200 GTexel/s

Texture Rate

30.00 GTexel/s

-

FP16 (half)

-

104.0 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Graphics Processor

Cedar

GPU Name

RV770

Cedar PRO

GPU Variant

RV770 XT Mac (215-0669080)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.292 billion

Transistors

0.956 billion

59 mm²

Die Size

256 mm²

Board Design

19W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x mini-DisplayPort 1.0

-

Power Connectors

2x 6-pin

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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