ATI Radeon HD 5850 vs ATI Radeon HD 5450 PCIe x1

VS

ATI Radeon HD 5850

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5850 and 512MB VRAM Radeon HD 5450 PCIe x1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5850 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 8.000GB/s)

1360 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 5850 +1907%

2.088 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 5850

VS

Radeon HD 5450 PCIe x1

Graphics Card

Sep 2009

Release Date

Feb 2010

Evergreen

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

1000 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

8.000GB/s

Render Config

18

Compute Units

2

-

1440

Shading Units

80

72

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

2.600 GPixel/s

52.20 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.088 TFLOPS

FP32 (float)

104.0 GFLOPS

417.6 GFLOPS

FP64 (double)

-

Board Design

151W

TDP

19W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

-

Graphics Processor

Cypress

GPU Name

Cedar

Cypress PRO (215-0735043)

GPU Variant

Cedar PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.154 billion

Transistors

0.292 billion

334 mm²

Die Size

59 mm²

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

-

5.0

Shader Model

5.0

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