NVIDIA GeForce 9400 GT PCI vs ATI Radeon HD 4890

VS

NVIDIA GeForce 9400 GT PCI

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 256MB VRAM GeForce 9400 GT PCI and 1024MB VRAM Radeon HD 4890 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT PCI 's Advantages

Lower TDP (50W vs 190W)

ATI Radeon HD 4890 's Advantages

Released 8 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (124.8GB/s vs 12.80GB/s)

784 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon HD 4890 +2922%

1.36 TFLOPS

GeForce 9400 GT PCI

VS

Radeon HD 4890

Graphics Card

Aug 2008

Release Date

Apr 2009

GeForce 9

Generation

Radeon R700

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

975 MHz

Memory

256MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

124.8GB/s

Render Config

-

Compute Units

10

2

SM Count

-

16

Shading Units

800

8

TMUs

40

4

ROPs

16

-

L1 Cache

16 KB (per CU)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

13.60 GPixel/s

4.400 GTexel/s

Texture Rate

34.00 GTexel/s

-

44.80 GFLOPS

FP32 (float)

1360 GFLOPS

-

FP64 (double)

272.0 GFLOPS

Board Design

50W

TDP

190W

250 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

G96C

GPU Name

RV790

-

GPU Variant

RV790 XT (215-0758016)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.314 billion

Transistors

0.959 billion

121 mm²

Die Size

282 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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