AMD Radeon HD 7790 vs ATI Radeon X1550 PCI

VS

AMD Radeon HD 7790

ATI Radeon X1550 PCI

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 256MB VRAM Radeon X1550 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 6 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (96.00GB/s vs 4.256GB/s)

896 additional rendering cores

ATI Radeon X1550 PCI 's Advantages

Lower TDP (27W vs 85W)

Score

Radeon HD 7790

VS

Radeon X1550 PCI

Graphics Card

Mar 2013

Release Date

Jan 2007

Southern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

266 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

4.256GB/s

Render Config

14

Compute Units

-

896

Shading Units

-

56

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

1.808 GPixel/s

56.00 GTexel/s

Texture Rate

1.808 GTexel/s

-

1.792 TFLOPS

FP32 (float)

-

112.0 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

27W

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

RV516

Bonaire XT (215-0839039)

GPU Variant

-

GCN 2.0

Architecture

R500

TSMC

Foundry

UMC

28 nm

Process Size

80 nm

2.08 billion

Transistors

0.107 billion

160 mm²

Die Size

100 mm²

Graphics Features

12 (12_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

2.0

OpenCL

N/A

1.2

Vulkan

N/A

-

6.3

Shader Model

3.0

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