ATI Radeon HD 4855 vs NVIDIA GeForce GTS 450 Rev. 3

VS

ATI Radeon HD 4855 NVIDIA GeForce GTS 450 Rev. 3

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4855 and 1024MB VRAM GeForce GTS 450 Rev. 3 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 22.40GB/s)

496 additional rendering cores

NVIDIA GeForce GTS 450 Rev. 3 's Advantages

Released 2 years and 6 months late

More VRAM (1024GB vs 512GB)

Lower TDP (106W vs 110W)

Score

Benchmark

FP32 (float)

Radeon HD 4855 +63%

0.736 TFLOPS

GeForce GTS 450 Rev. 3

0.451 TFLOPS

Radeon HD 4855

VS

GeForce GTS 450 Rev. 3

Graphics Card

Jan 2010

Release Date

Jul 2012

Radeon R700

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

700 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

22.40GB/s

Render Config

-

SM Count

3

8

Compute Units

-

640

Shading Units

144

32

TMUs

24

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

256 KB

Theoretical Performance

9.200 GPixel/s

Pixel Rate

4.698 GPixel/s

18.40 GTexel/s

Texture Rate

18.79 GTexel/s

-

FP16 (half)

-

736.0 GFLOPS

FP32 (float)

451.0 GFLOPS

147.2 GFLOPS

FP64 (double)

37.58 GFLOPS

Graphics Processor

RV770

GPU Name

GF116

RV770 PRO (215-0669065)

GPU Variant

GF116-200-KA-A1

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

1.17 billion

256 mm²

Die Size

238 mm²

Board Design

110W

TDP

106W

300 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

-

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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