AMD Radeon HD 6990 vs ATI Radeon HD 5450

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 512MB VRAM Radeon HD 5450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 1 years and 1 months late

Larger VRAM bandwidth (160.0GB/s vs 6.400GB/s)

1456 additional rendering cores

ATI Radeon HD 5450 's Advantages

Lower TDP (19W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +2351%

2.55 TFLOPS

Radeon HD 5450

0.104 TFLOPS

Radeon HD 6990

VS

Radeon HD 5450

Graphics Card

Mar 2011

Release Date

Feb 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

24

Compute Units

2

1536

Shading Units

80

96

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

26.56 GPixel/s

Pixel Rate

2.600 GPixel/s

79.68 GTexel/s

Texture Rate

5.200 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

104.0 GFLOPS

637.4 GFLOPS

FP64 (double)

-

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

Board Design

375W

TDP

19W

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

None

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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