NVIDIA GeForce 9800 GT vs ATI Radeon HD 4855

VS

NVIDIA GeForce 9800 GT

ATI Radeon HD 4855

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GT and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4855 's Advantages

Released 1 years and 6 months late

Larger VRAM bandwidth (115.2GB/s vs 57.60GB/s)

528 additional rendering cores

Lower TDP (110W vs 125W)

Score

Benchmark

FP32 (float)

GeForce 9800 GT

0.336 TFLOPS

Radeon HD 4855 +119%

0.736 TFLOPS

GeForce 9800 GT

VS

Radeon HD 4855

Graphics Card

Jul 2008

Release Date

Jan 2010

GeForce 9

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

256bit

57.60GB/s

Bandwidth

115.2GB/s

Render Config

-

Compute Units

8

14

SM Count

-

112

Shading Units

640

56

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

9.200 GPixel/s

33.60 GTexel/s

Texture Rate

18.40 GTexel/s

-

336.0 GFLOPS

FP32 (float)

736.0 GFLOPS

-

FP64 (double)

147.2 GFLOPS

Board Design

125W

TDP

110W

300 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

G92B

GPU Name

RV770

G92-280-B1

GPU Variant

RV770 PRO (215-0669065)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.754 billion

Transistors

0.956 billion

260 mm²

Die Size

256 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

4.1

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