AMD Radeon HD 7850 vs ATI Radeon HD 4570 Rebrand

VS

AMD Radeon HD 7850

ATI Radeon HD 4570 Rebrand

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 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 7850 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 12.67GB/s)

904 additional rendering cores

ATI Radeon HD 4570 Rebrand 's Advantages

Lower TDP (65W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +821%

1.761 TFLOPS

Radeon HD 4570 Rebrand

0.191 TFLOPS

Radeon HD 7850

VS

Radeon HD 4570 Rebrand

Graphics Card

Mar 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

-

1200 MHz

Memory Clock

396 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

153.6GB/s

Bandwidth

12.67GB/s

Render Config

16

Compute Units

3

-

1024

Shading Units

120

64

TMUs

8

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

3.184 GPixel/s

55.04 GTexel/s

Texture Rate

6.368 GTexel/s

-

1.761 TFLOPS

FP32 (float)

191.0 GFLOPS

110.1 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

65W

300 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

-

Graphics Processor

Pitcairn

GPU Name

RV635

Pitcairn PRO (215-0828062)

GPU Variant

RV635 PRO (215-0682008)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.378 billion

212 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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