AMD Radeon R9 290X vs ATI Radeon HD 4855

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 290X 's Advantages

Released 3 years and 9 months late

Larger VRAM bandwidth (320.0GB/s vs 115.2GB/s)

2176 additional rendering cores

ATI Radeon HD 4855 's Advantages

Lower TDP (110W vs 290W)

Score

Benchmark

FP32 (float)

Radeon R9 290X +665%

5.632 TFLOPS

Radeon HD 4855

0.736 TFLOPS

Radeon R9 290X

VS

Radeon HD 4855

Graphics Card

Oct 2013

Release Date

Jan 2010

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

256bit

320.0GB/s

Bandwidth

115.2GB/s

Render Config

-

SM Count

-

44

Compute Units

8

2816

Shading Units

640

176

TMUs

32

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

256 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

9.200 GPixel/s

176.0 GTexel/s

Texture Rate

18.40 GTexel/s

-

FP16 (half)

-

5.632 TFLOPS

FP32 (float)

736.0 GFLOPS

704.0 GFLOPS

FP64 (double)

147.2 GFLOPS

Graphics Processor

Hawaii

GPU Name

RV770

Hawaii XT (215-0852000)

GPU Variant

RV770 PRO (215-0669065)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.956 billion

438 mm²

Die Size

256 mm²

Board Design

290W

TDP

110W

600 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

4.1

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