ATI Radeon HD 3750 vs ATI Radeon HD 3450 X2

VS

ATI Radeon HD 3750

ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3750 and 512MB VRAM Radeon HD 3450 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3750 's Advantages

Released 9 months late

Larger VRAM bandwidth (22.18GB/s vs 8.000GB/s)

80 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

Radeon HD 3750 +297%

0.191 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

Radeon HD 3750

VS

Radeon HD 3450 X2

Graphics Card

Sep 2008

Release Date

Dec 2007

Radeon R600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

693 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

64bit

22.18GB/s

Bandwidth

8.000GB/s

Render Config

3

Compute Units

2

-

120

Shading Units

40

8

TMUs

4

ROPs

4

-

128 KB

L2 Cache

64 KB

-

Theoretical Performance

3.184 GPixel/s

Pixel Rate

2.400 GPixel/s

6.368 GTexel/s

Texture Rate

2.400 GTexel/s

-

191.0 GFLOPS

FP32 (float)

48.00 GFLOPS

-

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

2x DMS-59

None

Power Connectors

None

Graphics Processor

RV635

GPU Name

RV620

RV635 PRO (215-0682008)

GPU Variant

RV620 LE

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.378 billion

Transistors

0.181 billion

135 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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