NVIDIA GeForce 8400 GS Rev. 3 vs ATI Radeon HD 2950 PRO

VS

NVIDIA GeForce 8400 GS Rev. 3

ATI Radeon HD 2950 PRO

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 256MB VRAM Radeon HD 2950 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

More VRAM (512GB vs 256GB)

Lower TDP (25W vs 75W)

ATI Radeon HD 2950 PRO 's Advantages

Larger VRAM bandwidth (38.40GB/s vs 6.400GB/s)

312 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS Rev. 3

0.02 TFLOPS

Radeon HD 2950 PRO +1820%

0.384 TFLOPS

GeForce 8400 GS Rev. 3

VS

Radeon HD 2950 PRO

Graphics Card

Jul 2010

Release Date

Unknown

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

600 MHz

Memory

512MB

Memory Size

256MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

38.40GB/s

Render Config

-

Compute Units

4

1

SM Count

-

8

Shading Units

320

4

TMUs

16

4

ROPs

16

-

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.080 GPixel/s

Pixel Rate

9.600 GPixel/s

2.080 GTexel/s

Texture Rate

9.600 GTexel/s

-

19.68 GFLOPS

FP32 (float)

384.0 GFLOPS

-

FP64 (double)

76.80 GFLOPS

Board Design

25W

TDP

75W

200 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

GT218

GPU Name

RV670

8400GS-225-B1

GPU Variant

RV670 PRO ES (215-0708001)

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.26 billion

Transistors

0.666 billion

57 mm²

Die Size

192 mm²

Graphics Features

11.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.2

CUDA

-

4.1

Shader Model

4.1

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