NVIDIA GeForce 8400 SE vs ATI Radeon HD 3870

VS

NVIDIA GeForce 8400 SE ATI Radeon HD 3870

We compared two Desktop platform GPUs: 128MB VRAM GeForce 8400 SE and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 SE 's Advantages

Released 9 months late

Lower TDP (50W vs 106W)

ATI Radeon HD 3870 's Advantages

More VRAM (512GB vs 128GB)

Larger VRAM bandwidth (72.06GB/s vs 6.400GB/s)

304 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 SE

0.029 TFLOPS

Radeon HD 3870 +1613%

0.497 TFLOPS

GeForce 8400 SE

VS

Radeon HD 3870

Graphics Card

Aug 2008

Release Date

Nov 2007

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

1126 MHz

Memory

128MB

Memory Size

512MB

DDR2

Memory Type

GDDR4

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

72.06GB/s

Render Config

2

SM Count

-

Compute Units

4

16

Shading Units

320

8

TMUs

16

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

16 KB

L2 Cache

256 KB

Theoretical Performance

1.836 GPixel/s

Pixel Rate

12.43 GPixel/s

3.672 GTexel/s

Texture Rate

12.43 GTexel/s

-

FP16 (half)

-

29.38 GFLOPS

FP32 (float)

497.3 GFLOPS

-

FP64 (double)

99.46 GFLOPS

Graphics Processor

G86

GPU Name

RV670

-

GPU Variant

RV670 XT (215-0708005)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.21 billion

Transistors

0.666 billion

127 mm²

Die Size

192 mm²

Board Design

50W

TDP

106W

250 W

Suggested PSU

300 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

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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