NVIDIA GeForce 8400 GS PCI Rev. 2 vs ATI Radeon HD 2900 GT

VS

NVIDIA GeForce 8400 GS PCI Rev. 2 ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS PCI Rev. 2 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS PCI Rev. 2 's Advantages

More VRAM (512GB vs 256GB)

Lower TDP (40W vs 150W)

ATI Radeon HD 2900 GT 's Advantages

Released 7 months late

Larger VRAM bandwidth (51.20GB/s vs 8.000GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS PCI Rev. 2

0.039 TFLOPS

Radeon HD 2900 GT +638%

0.288 TFLOPS

GeForce 8400 GS PCI Rev. 2

VS

Radeon HD 2900 GT

Graphics Card

Apr 2007

Release Date

Nov 2007

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

500 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

256MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

51.20GB/s

Render Config

2

SM Count

-

Compute Units

3

16

Shading Units

240

8

TMUs

12

4

ROPs

12

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

32 KB

L2 Cache

128 KB

Theoretical Performance

2.080 GPixel/s

Pixel Rate

7.212 GPixel/s

4.160 GTexel/s

Texture Rate

7.212 GTexel/s

-

FP16 (half)

-

39.36 GFLOPS

FP32 (float)

288.5 GFLOPS

-

FP64 (double)

-

Graphics Processor

GT218

GPU Name

R600

-

GPU Variant

R600 GT (215RGFDKA13FG)

Tesla 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

0.26 billion

Transistors

0.72 billion

57 mm²

Die Size

420 mm²

Board Design

40W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 8-pin

Graphics Features

11.1 (10_1)

DirectX

10.0 (10_0)

3.3

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

1.2

CUDA

-

4.1

Shader Model

4.0

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