ATI Radeon HD 4855 vs NVIDIA GeForce 9400 GT PCI

VS

ATI Radeon HD 4855 NVIDIA GeForce 9400 GT PCI

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4855 and 256MB VRAM GeForce 9400 GT PCI 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 5 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 12.80GB/s)

624 additional rendering cores

NVIDIA GeForce 9400 GT PCI 's Advantages

Lower TDP (50W vs 110W)

Score

Benchmark

FP32 (float)

Radeon HD 4855 +1535%

0.736 TFLOPS

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon HD 4855

VS

GeForce 9400 GT PCI

Graphics Card

Jan 2010

Release Date

Aug 2008

Radeon R700

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

8

Compute Units

-

640

Shading Units

16

32

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

Theoretical Performance

9.200 GPixel/s

Pixel Rate

2.200 GPixel/s

18.40 GTexel/s

Texture Rate

4.400 GTexel/s

-

FP16 (half)

-

736.0 GFLOPS

FP32 (float)

44.80 GFLOPS

147.2 GFLOPS

FP64 (double)

-

Graphics Processor

RV770

GPU Name

G96C

RV770 PRO (215-0669065)

GPU Variant

-

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.956 billion

Transistors

0.314 billion

256 mm²

Die Size

121 mm²

Board Design

110W

TDP

50W

300 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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