AMD Radeon HD 6950 vs ATI Radeon HD 5450 PCI

VS

AMD Radeon HD 6950

ATI Radeon HD 5450 PCI

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 512MB VRAM Radeon HD 5450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Released 10 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 5.328GB/s)

1328 additional rendering cores

ATI Radeon HD 5450 PCI 's Advantages

Lower TDP (19W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950 +2066%

2.253 TFLOPS

Radeon HD 5450 PCI

0.104 TFLOPS

Radeon HD 6950

VS

Radeon HD 5450 PCI

Graphics Card

Dec 2010

Release Date

Feb 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

1250 MHz

Memory Clock

333 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

5.328GB/s

Render Config

22

Compute Units

2

-

1408

Shading Units

80

88

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.600 GPixel/s

70.40 GTexel/s

Texture Rate

5.200 GTexel/s

-

2.253 TFLOPS

FP32 (float)

104.0 GFLOPS

563.2 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

19W

550 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

2x 6-pin

Power Connectors

None

Graphics Processor

Cayman

GPU Name

Cedar

Cayman PRO (215-0807019)

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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