AMD Radeon HD 7990 vs ATI Radeon X1600 XT Dual

VS

AMD Radeon HD 7990

ATI Radeon X1600 XT Dual

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 256MB VRAM Radeon X1600 XT Dual to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.0GB/s vs 22.08GB/s)

2048 additional rendering cores

Score

Radeon HD 7990

VS

Radeon X1600 XT Dual

Graphics Card

Apr 2013

Release Date

Unknown

Southern Islands

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

690 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

22.08GB/s

Render Config

32

Compute Units

-

2048

Shading Units

-

128

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

2.360 GPixel/s

128.0 GTexel/s

Texture Rate

2.360 GTexel/s

-

4.096 TFLOPS

FP32 (float)

-

1024 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

Unknown

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI

2x 8-pin

Power Connectors

1x Molex

Graphics Processor

Malta

GPU Name

RV530

Malta XT (215-0849026)

GPU Variant

-

GCN 1.0

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

4.313 billion

Transistors

0.157 billion

365 mm²

Die Size

150 mm²

Graphics Features

12 (11_1)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

3.0

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