AMD Radeon HD 7990 vs ATI Radeon X1950 XTX Uber Edition

VS

AMD Radeon HD 7990

ATI Radeon X1950 XTX Uber Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 512MB VRAM Radeon X1950 XTX Uber Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Released 6 years and 3 months late

Boost Clock1000MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 67.20GB/s)

2048 additional rendering cores

ATI Radeon X1950 XTX Uber Edition 's Advantages

Lower TDP (125W vs 375W)

Score

Radeon HD 7990

VS

Radeon X1950 XTX Uber Edition

Graphics Card

Apr 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

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1050 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

67.20GB/s

Render Config

32

Compute Units

-

2048

Shading Units

-

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

10.72 GPixel/s

128.0 GTexel/s

Texture Rate

10.72 GTexel/s

-

4.096 TFLOPS

FP32 (float)

-

1024 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

125W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x VHDCI

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Malta

GPU Name

R580+

Malta XT (215-0849026)

GPU Variant

R580+ XT (215BAABKA31FG)

GCN 1.0

Architecture

R500

TSMC

Foundry

TSMC

28 nm

Process Size

90 nm

4.313 billion

Transistors

0.384 billion

365 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1 (full) 3.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

3.0

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