ATI Radeon HD 4855 vs AMD Radeon R5 235X OEM

VS

ATI Radeon HD 4855 AMD Radeon R5 235X OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4855 and 1024MB VRAM Radeon R5 235X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4855 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 14.40GB/s)

480 additional rendering cores

AMD Radeon R5 235X OEM 's Advantages

Released 3 years and 11 months late

More VRAM (1024GB vs 512GB)

Lower TDP (18W vs 110W)

Score

Benchmark

FP32 (float)

Radeon HD 4855 +162%

0.736 TFLOPS

Radeon R5 235X OEM

0.28 TFLOPS

Radeon HD 4855

VS

Radeon R5 235X OEM

Graphics Card

Jan 2010

Release Date

Dec 2013

Radeon R700

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

-

8

Compute Units

2

640

Shading Units

160

32

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

9.200 GPixel/s

Pixel Rate

3.500 GPixel/s

18.40 GTexel/s

Texture Rate

7.000 GTexel/s

-

FP16 (half)

-

736.0 GFLOPS

FP32 (float)

280.0 GFLOPS

147.2 GFLOPS

FP64 (double)

-

Graphics Processor

RV770

GPU Name

Caicos

RV770 PRO (215-0669065)

GPU Variant

Caicos XT (215-0804070)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

0.37 billion

256 mm²

Die Size

67 mm²

Board Design

110W

TDP

18W

300 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

5.0

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