AMD Radeon R9 285 vs ATI Radeon HD 4860

VS

AMD Radeon R9 285

ATI Radeon HD 4860

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 512MB VRAM Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages

Released 5 years late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (176.0GB/s vs 96.00GB/s)

1152 additional rendering cores

ATI Radeon HD 4860 's Advantages

Lower TDP (130W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 285 +267%

3.29 TFLOPS

Radeon HD 4860

0.896 TFLOPS

Radeon R9 285

VS

Radeon HD 4860

Graphics Card

Sep 2014

Release Date

Sep 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

750 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

96.00GB/s

Render Config

28

Compute Units

8

-

1792

Shading Units

640

112

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

29.38 GPixel/s

Pixel Rate

11.20 GPixel/s

102.8 GTexel/s

Texture Rate

22.40 GTexel/s

3.290 TFLOPS

FP16 (half)

-

3.290 TFLOPS

FP32 (float)

896.0 GFLOPS

205.6 GFLOPS

FP64 (double)

179.2 GFLOPS

Board Design

190W

TDP

130W

450 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Tonga

GPU Name

RV790

Tonga PRO (215-0851128)

GPU Variant

RV790 GT

GCN 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

5 billion

Transistors

0.959 billion

366 mm²

Die Size

282 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.2.170

Vulkan

N/A

-

6.5

Shader Model

4.1

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