AMD Radeon HD 7790 vs ATI Radeon HD 3470

VS

AMD Radeon HD 7790

ATI Radeon HD 3470

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 256MB VRAM Radeon HD 3470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7790 's Advantages

Released 5 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (96.00GB/s vs 15.20GB/s)

856 additional rendering cores

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +2700%

1.792 TFLOPS

Radeon HD 3470

0.064 TFLOPS

Radeon HD 7790

VS

Radeon HD 3470

Graphics Card

Mar 2013

Release Date

Jan 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

950 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

15.20GB/s

Render Config

14

Compute Units

2

-

896

Shading Units

40

56

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

3.200 GPixel/s

56.00 GTexel/s

Texture Rate

3.200 GTexel/s

-

1.792 TFLOPS

FP32 (float)

64.00 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

30W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Bonaire

GPU Name

RV620

Bonaire XT (215-0839039)

GPU Variant

RV620 PRO (215-0670006)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.08 billion

Transistors

0.181 billion

160 mm²

Die Size

67 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

4.1

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