ATI Radeon HD 4750 vs AMD Radeon R9 285

VS

ATI Radeon HD 4750

AMD Radeon R9 285

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4750 and 2GB VRAM Radeon R9 285 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4750 's Advantages

Lower TDP (100W vs 190W)

AMD Radeon R9 285 's Advantages

Released 5 years late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 51.20GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4750

0.934 TFLOPS

Radeon R9 285 +252%

3.29 TFLOPS

Radeon HD 4750

VS

Radeon R9 285

Graphics Card

Sep 2009

Release Date

Sep 2014

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1375 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

51.20GB/s

Bandwidth

176.0GB/s

Render Config

8

Compute Units

28

-

640

Shading Units

1792

32

TMUs

112

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

11.68 GPixel/s

Pixel Rate

29.38 GPixel/s

23.36 GTexel/s

Texture Rate

102.8 GTexel/s

-

FP16 (half)

3.290 TFLOPS

934.4 GFLOPS

FP32 (float)

3.290 TFLOPS

186.9 GFLOPS

FP64 (double)

205.6 GFLOPS

Board Design

100W

TDP

190W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV740

GPU Name

Tonga

RV740 PRO

GPU Variant

Tonga PRO (215-0851128)

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.826 billion

Transistors

5 billion

137 mm²

Die Size

366 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.1

N/A

Vulkan

1.2.170

-

4.1

Shader Model

6.5

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