ATI Radeon HD 4850 vs AMD Radeon R9 285X

VS

ATI Radeon HD 4850

AMD Radeon R9 285X

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4850 and 3GB VRAM Radeon R9 285X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4850 's Advantages

Lower TDP (110W vs 200W)

AMD Radeon R9 285X 's Advantages

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (264.0GB/s vs 63.55GB/s)

1248 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4850

1 TFLOPS

Radeon R9 285X +310%

4.104 TFLOPS

Radeon HD 4850

VS

Radeon R9 285X

Graphics Card

Jun 2008

Release Date

Unknown

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

993 MHz

Memory Clock

1375 MHz

Memory

512MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

384bit

63.55GB/s

Bandwidth

264.0GB/s

Render Config

10

Compute Units

32

-

800

Shading Units

2048

40

TMUs

128

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

768 KB

-

Theoretical Performance

10.00 GPixel/s

Pixel Rate

32.06 GPixel/s

25.00 GTexel/s

Texture Rate

128.3 GTexel/s

-

1000 GFLOPS

FP32 (float)

4.104 TFLOPS

200.0 GFLOPS

FP64 (double)

-

Board Design

110W

TDP

200W

300 W

Suggested PSU

550 W

2x DVI 1x S-Video

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV770

GPU Name

Tonga

RV770 PRO (215-0669065)

GPU Variant

Tonga XT (215-0851313)

TeraScale

Architecture

GCN 3.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

5 billion

256 mm²

Die Size

366 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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