AMD Radeon HD 6850 1440SP Edition vs ATI Radeon HD 3450 PCI

VS

AMD Radeon HD 6850 1440SP Edition

ATI Radeon HD 3450 PCI

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 1440SP Edition and 512MB VRAM Radeon HD 3450 PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 1440SP Edition 's Advantages

Released 4 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 6.400GB/s)

1400 additional rendering cores

ATI Radeon HD 3450 PCI 's Advantages

Lower TDP (25W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 1440SP Edition +4250%

2.088 TFLOPS

Radeon HD 3450 PCI

0.048 TFLOPS

Radeon HD 6850 1440SP Edition

VS

Radeon HD 3450 PCI

Graphics Card

Aug 2012

Release Date

Jan 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

128.0GB/s

Bandwidth

6.400GB/s

Render Config

18

Compute Units

2

-

1440

Shading Units

40

72

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

2.400 GPixel/s

52.20 GTexel/s

Texture Rate

2.400 GTexel/s

-

2.088 TFLOPS

FP32 (float)

48.00 GFLOPS

417.6 GFLOPS

FP64 (double)

-

Board Design

151W

TDP

25W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Cypress

GPU Name

RV620

Cypress PRO (215-0735043)

GPU Variant

RV620 LE

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.154 billion

Transistors

0.181 billion

334 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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