AMD Radeon HD 7870 XT vs ATI Radeon HD 4570 Rebrand

VS

AMD Radeon HD 7870 XT

ATI Radeon HD 4570 Rebrand

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 XT and 1024MB VRAM Radeon HD 4570 Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Released 3 years late

Boost Clock975MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.0GB/s vs 12.67GB/s)

1416 additional rendering cores

ATI Radeon HD 4570 Rebrand 's Advantages

Lower TDP (65W vs 185W)

Score

Benchmark

FP32 (float)

Radeon HD 7870 XT +1468%

2.995 TFLOPS

Radeon HD 4570 Rebrand

0.191 TFLOPS

Radeon HD 7870 XT

VS

Radeon HD 4570 Rebrand

Graphics Card

Nov 2012

Release Date

Nov 2009

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

1500 MHz

Memory Clock

396 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

192.0GB/s

Bandwidth

12.67GB/s

Render Config

24

Compute Units

3

-

1536

Shading Units

120

96

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

-

Theoretical Performance

31.20 GPixel/s

Pixel Rate

3.184 GPixel/s

93.60 GTexel/s

Texture Rate

6.368 GTexel/s

-

2.995 TFLOPS

FP32 (float)

191.0 GFLOPS

748.8 GFLOPS

FP64 (double)

-

Board Design

185W

TDP

65W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

RV635

Tahiti LE (215-0821122)

GPU Variant

RV635 PRO (215-0682008)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.378 billion

352 mm²

Die Size

135 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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