ATI Radeon HD 3850 AGP vs AMD Radeon HD 7790

VS

ATI Radeon HD 3850 AGP

AMD Radeon HD 7790

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 AGP and 1024MB VRAM Radeon HD 7790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3850 AGP 's Advantages

Lower TDP (75W vs 85W)

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 52.99GB/s)

576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3850 AGP

0.428 TFLOPS

Radeon HD 7790 +318%

1.792 TFLOPS

Radeon HD 3850 AGP

VS

Radeon HD 7790

Graphics Card

Jan 2008

Release Date

Mar 2013

Radeon R600

Generation

Southern Islands

Desktop

Type

Desktop

AGP 8x

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

52.99GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

14

-

320

Shading Units

896

16

TMUs

56

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

10.69 GPixel/s

Pixel Rate

16.00 GPixel/s

10.69 GTexel/s

Texture Rate

56.00 GTexel/s

-

427.5 GFLOPS

FP32 (float)

1.792 TFLOPS

85.50 GFLOPS

FP64 (double)

112.0 GFLOPS

Board Design

75W

TDP

85W

250 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

RV670

GPU Name

Bonaire

RV670 PRO (215-0708003)

GPU Variant

Bonaire XT (215-0839039)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

2.08 billion

192 mm²

Die Size

160 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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