AMD Radeon HD 6870 1600SP Edition vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon HD 6870 1600SP Edition ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition 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

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 2 years and 11 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 8.000GB/s)

1520 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition +2515%

2.72 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 6870 1600SP Edition

VS

Radeon HD 5450 PCIe x1

Graphics Card

Jan 2013

Release Date

Feb 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

20

Compute Units

2

1600

Shading Units

80

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

27.20 GPixel/s

Pixel Rate

2.600 GPixel/s

68.00 GTexel/s

Texture Rate

5.200 GTexel/s

-

FP16 (half)

-

2.720 TFLOPS

FP32 (float)

104.0 GFLOPS

544.0 GFLOPS

FP64 (double)

-

Graphics Processor

Cypress

GPU Name

Cedar

Cypress XT (215-0735033)

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

Board Design

175W

TDP

19W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

-

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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