ATI Radeon HD 5770 X2 vs ATI Radeon HD 5450 PCI

VS

ATI Radeon HD 5770 X2

ATI Radeon HD 5450 PCI

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 X2 and 512MB VRAM Radeon HD 5450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5770 X2 's Advantages

Released 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (76.80GB/s vs 5.328GB/s)

720 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5770 X2 +1207%

1.36 TFLOPS

Radeon HD 5450 PCI

0.104 TFLOPS

Radeon HD 5770 X2

VS

Radeon HD 5450 PCI

Graphics Card

Oct 2010

Release Date

Feb 2010

Evergreen

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

1200 MHz

Memory Clock

333 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

5.328GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

80

40

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

2.600 GPixel/s

34.00 GTexel/s

Texture Rate

5.200 GTexel/s

-

1360 GFLOPS

FP32 (float)

104.0 GFLOPS

-

Board Design

Unknown

TDP

19W

200 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a

-

Power Connectors

None

Graphics Processor

Juniper

GPU Name

Cedar

Juniper XT (215-0754013)

GPU Variant

Cedar PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

0.292 billion

166 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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