AMD Radeon HD 6970 X2 vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon HD 6970 X2

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 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 6970 X2 's Advantages

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 8.000GB/s)

1456 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +2499%

2.703 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 6970 X2

VS

Radeon HD 5450 PCIe x1

Graphics Card

Unknown

Release Date

Feb 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

1375 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

176.0GB/s

Bandwidth

8.000GB/s

Render Config

24

Compute Units

2

-

1536

Shading Units

80

96

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

2.600 GPixel/s

84.48 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.703 TFLOPS

FP32 (float)

104.0 GFLOPS

-

Board Design

375W

TDP

19W

750 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

3x 8-pin

Power Connectors

-

Graphics Processor

Antilles

GPU Name

Cedar

Antilles XT (215-0807027)

GPU Variant

Cedar PRO

TeraScale 3

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

0.292 billion

389 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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