AMD Radeon HD 7750 vs ATI Radeon HD 3450

VS

AMD Radeon HD 7750

ATI Radeon HD 3450

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7750 and 256MB VRAM Radeon HD 3450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7750 's Advantages

Released 4 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (72.00GB/s vs 8.000GB/s)

472 additional rendering cores

ATI Radeon HD 3450 's Advantages

Lower TDP (25W vs 55W)

Score

Benchmark

FP32 (float)

Radeon HD 7750 +1606%

0.819 TFLOPS

Radeon HD 3450

0.048 TFLOPS

Radeon HD 7750

VS

Radeon HD 3450

Graphics Card

Feb 2012

Release Date

Dec 2007

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1125 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

8.000GB/s

Render Config

8

Compute Units

2

-

512

Shading Units

40

32

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

2.400 GPixel/s

25.60 GTexel/s

Texture Rate

2.400 GTexel/s

-

819.2 GFLOPS

FP32 (float)

48.00 GFLOPS

51.20 GFLOPS

FP64 (double)

-

Board Design

55W

TDP

25W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

RV620

Cape Verde PRO

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.181 billion

123 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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