NVIDIA GeForce 8400 GS vs ATI Radeon HD 4870

VS

NVIDIA GeForce 8400 GS ATI Radeon HD 4870

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 GS and 512MB VRAM Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 150W)

ATI Radeon HD 4870 's Advantages

Released 1 years and 2 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 6.400GB/s)

784 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS

0.029 TFLOPS

Radeon HD 4870 +4037%

1.2 TFLOPS

GeForce 8400 GS

VS

Radeon HD 4870

Graphics Card

Apr 2007

Release Date

Jun 2008

GeForce 8

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

115.2GB/s

Render Config

2

SM Count

-

Compute Units

10

16

Shading Units

800

8

TMUs

40

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

16 KB

L2 Cache

256 KB

Theoretical Performance

1.836 GPixel/s

Pixel Rate

12.00 GPixel/s

3.672 GTexel/s

Texture Rate

30.00 GTexel/s

-

FP16 (half)

-

29.38 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Graphics Processor

G86

GPU Name

RV770

G86-213-A2

GPU Variant

RV770 XT (215-0669049)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.21 billion

Transistors

0.956 billion

127 mm²

Die Size

256 mm²

Board Design

40W

TDP

150W

200 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 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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