NVIDIA GeForce 9400 GT PCI vs ATI Radeon HD 3850

VS

NVIDIA GeForce 9400 GT PCI

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 256MB VRAM GeForce 9400 GT PCI and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT PCI 's Advantages

Released 9 months late

Lower TDP (50W vs 75W)

ATI Radeon HD 3850 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (53.12GB/s vs 12.80GB/s)

304 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon HD 3850 +851%

0.428 TFLOPS

GeForce 9400 GT PCI

VS

Radeon HD 3850

Graphics Card

Aug 2008

Release Date

Nov 2007

GeForce 9

Generation

Radeon R600

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

830 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

53.12GB/s

Render Config

-

Compute Units

4

2

SM Count

-

16

Shading Units

320

8

TMUs

16

4

ROPs

16

-

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

10.69 GPixel/s

4.400 GTexel/s

Texture Rate

10.69 GTexel/s

-

44.80 GFLOPS

FP32 (float)

427.5 GFLOPS

-

FP64 (double)

85.50 GFLOPS

Board Design

50W

TDP

75W

250 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

G96C

GPU Name

RV670

-

GPU Variant

RV670 PRO (215-0708003)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.314 billion

Transistors

0.666 billion

121 mm²

Die Size

192 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

4.1

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