NVIDIA GeForce 8400M G vs AMD Radeon HD 8670A

VS

NVIDIA GeForce 8400M G AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 256MB VRAM GeForce 8400M G and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400M G 's Advantages

Lower TDP (10W vs 45W)

AMD Radeon HD 8670A 's Advantages

Released 5 years and 9 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (16.00GB/s vs 6.400GB/s)

376 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M G

0.013 TFLOPS

Radeon HD 8670A +3446%

0.461 TFLOPS

GeForce 8400M G

VS

Radeon HD 8670A

Graphics Card

May 2007

Release Date

Feb 2013

GeForce 8M

Generation

All-In-One

Mobile

Type

Mobile

PCIe 1.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

6.400GB/s

Bandwidth

16.00GB/s

Render Config

1

SM Count

-

Compute Units

6

8

Shading Units

384

8

TMUs

24

4

ROPs

8

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

16 KB

L2 Cache

128 KB

Theoretical Performance

1.600 GPixel/s

Pixel Rate

4.800 GPixel/s

3.200 GTexel/s

Texture Rate

14.40 GTexel/s

-

FP16 (half)

-

12.80 GFLOPS

FP32 (float)

460.8 GFLOPS

-

FP64 (double)

28.80 GFLOPS

Graphics Processor

G86

GPU Name

Mars

NB8M-SE

GPU Variant

Mars XT

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.21 billion

Transistors

0.95 billion

127 mm²

Die Size

77 mm²

Board Design

10W

TDP

45W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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