AMD Radeon HD 7790 vs ATI Radeon HD 3450 PCI

VS

AMD Radeon HD 7790

ATI Radeon HD 3450 PCI

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 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 7790 's Advantages

Released 5 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (96.00GB/s vs 6.400GB/s)

856 additional rendering cores

ATI Radeon HD 3450 PCI 's Advantages

Lower TDP (25W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +3633%

1.792 TFLOPS

Radeon HD 3450 PCI

0.048 TFLOPS

Radeon HD 7790

VS

Radeon HD 3450 PCI

Graphics Card

Mar 2013

Release Date

Jan 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

-

1500 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

6.400GB/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

2.400 GPixel/s

56.00 GTexel/s

Texture Rate

2.400 GTexel/s

-

1.792 TFLOPS

FP32 (float)

48.00 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

25W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Bonaire

GPU Name

RV620

Bonaire XT (215-0839039)

GPU Variant

RV620 LE

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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