ATI Mobility Radeon HD 4670 vs NVIDIA GeForce 8400M G

VS

ATI Mobility Radeon HD 4670

NVIDIA GeForce 8400M G

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 4670 and 256MB VRAM GeForce 8400M G to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4670 's Advantages

Released 1 years and 8 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (25.60GB/s vs 6.400GB/s)

312 additional rendering cores

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 35W)

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4670 +3223%

0.432 TFLOPS

GeForce 8400M G

0.013 TFLOPS

Mobility Radeon HD 4670

VS

GeForce 8400M G

Graphics Card

Jan 2009

Release Date

May 2007

M9x

Generation

GeForce 8M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

6.400GB/s

Render Config

4

Compute Units

-

SM Count

1

320

Shading Units

8

32

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

16 KB

-

Theoretical Performance

5.400 GPixel/s

Pixel Rate

1.600 GPixel/s

21.60 GTexel/s

Texture Rate

3.200 GTexel/s

-

432.0 GFLOPS

FP32 (float)

12.80 GFLOPS

-

Board Design

35W

TDP

10W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M96

GPU Name

G86

M96 XT (216-0729051)

GPU Variant

NB8M-SE

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.514 billion

Transistors

0.21 billion

146 mm²

Die Size

127 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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