ATI Radeon HD 3850 X2 vs ATI Radeon HD 5450 PCIe x1

VS

ATI Radeon HD 3850 X2 ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 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

ATI Radeon HD 3850 X2 's Advantages

Larger VRAM bandwidth (52.99GB/s vs 8.000GB/s)

240 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Released 1 years and 10 months late

Lower TDP (19W vs 140W)

Score

Benchmark

FP32 (float)

Radeon HD 3850 X2 +311%

0.428 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 3850 X2

VS

Radeon HD 5450 PCIe x1

Graphics Card

Apr 2008

Release Date

Feb 2010

Radeon R600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

Base Clock

-

Boost Clock

-

828 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR3

256bit

Memory Bus

64bit

52.99GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

4

Compute Units

2

320

Shading Units

80

16

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

10.70 GPixel/s

Pixel Rate

2.600 GPixel/s

10.70 GTexel/s

Texture Rate

5.200 GTexel/s

-

FP16 (half)

-

428.2 GFLOPS

FP32 (float)

104.0 GFLOPS

85.63 GFLOPS

FP64 (double)

-

Graphics Processor

RV670

GPU Name

Cedar

RV670 PRO (215-0708003)

GPU Variant

Cedar PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.292 billion

192 mm²

Die Size

59 mm²

Board Design

140W

TDP

19W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

-

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

5.0

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