AMD Radeon HD 7970 X2 vs ATI Radeon HD 3450 AGP

VS

AMD Radeon HD 7970 X2

ATI Radeon HD 3450 AGP

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 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 7970 X2 's Advantages

Released 4 years and 7 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (264.0GB/s vs 8.000GB/s)

2008 additional rendering cores

ATI Radeon HD 3450 AGP 's Advantages

Lower TDP (25W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +7793%

3.789 TFLOPS

Radeon HD 3450 AGP

0.048 TFLOPS

Radeon HD 7970 X2

VS

Radeon HD 3450 AGP

Graphics Card

Aug 2012

Release Date

Jan 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

1375 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

8.000GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

40

128

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

2.400 GPixel/s

118.4 GTexel/s

Texture Rate

2.400 GTexel/s

-

3.789 TFLOPS

FP32 (float)

48.00 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

500W

TDP

25W

900 W

Suggested PSU

200 W

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

Outputs

2x DVI

3x 8-pin

Power Connectors

1x Molex

Graphics Processor

New Zealand

GPU Name

RV620

-

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.181 billion

352 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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