AMD Radeon HD 7990 vs AMD Radeon HD 8570 OEM Rebrand

VS

AMD Radeon HD 7990

AMD Radeon HD 8570 OEM Rebrand

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 1024MB VRAM Radeon HD 8570 OEM Rebrand 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 1024GB)

Larger VRAM bandwidth (288.0GB/s vs 25.60GB/s)

1568 additional rendering cores

AMD Radeon HD 8570 OEM Rebrand 's Advantages

Lower TDP (60W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +556%

4.096 TFLOPS

Radeon HD 8570 OEM Rebrand

0.624 TFLOPS

Radeon HD 7990

VS

Radeon HD 8570 OEM Rebrand

Graphics Card

Apr 2013

Release Date

Jul 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

25.60GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

480

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

5.200 GPixel/s

128.0 GTexel/s

Texture Rate

15.60 GTexel/s

-

4.096 TFLOPS

FP32 (float)

624.0 GFLOPS

1024 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

60W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

-

Graphics Processor

Malta

GPU Name

Turks

Malta XT (215-0849026)

GPU Variant

Turks PRO (215-0803002)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

0.716 billion

365 mm²

Die Size

118 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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