AMD Radeon HD 6950 vs ATI Radeon HD 3450 AGP

VS

AMD Radeon HD 6950

ATI Radeon HD 3450 AGP

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 512MB VRAM Radeon HD 3450 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Released 2 years and 11 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 8.000GB/s)

1368 additional rendering cores

ATI Radeon HD 3450 AGP 's Advantages

Lower TDP (25W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950 +4593%

2.253 TFLOPS

Radeon HD 3450 AGP

0.048 TFLOPS

Radeon HD 6950

VS

Radeon HD 3450 AGP

Graphics Card

Dec 2010

Release Date

Jan 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1250 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

8.000GB/s

Render Config

22

Compute Units

2

-

1408

Shading Units

40

88

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.400 GPixel/s

70.40 GTexel/s

Texture Rate

2.400 GTexel/s

-

2.253 TFLOPS

FP32 (float)

48.00 GFLOPS

563.2 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

25W

550 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI

2x 6-pin

Power Connectors

1x Molex

Graphics Processor

Cayman

GPU Name

RV620

Cayman PRO (215-0807019)

GPU Variant

RV620 LE

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.181 billion

389 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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