AMD Radeon HD 8670M vs NVIDIA GeForce 8400M G

VS

AMD Radeon HD 8670M

NVIDIA GeForce 8400M G

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

Main Differences

AMD Radeon HD 8670M 's Advantages

Released 5 years and 10 months late

Boost Clock975MHz

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (14.40GB/s vs 6.400GB/s)

312 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8670M +4700%

0.624 TFLOPS

GeForce 8400M G

0.013 TFLOPS

Radeon HD 8670M

VS

GeForce 8400M G

Graphics Card

Mar 2013

Release Date

May 2007

Solar System

Generation

GeForce 8M

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

925 MHz

Base Clock

-

975 MHz

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

64bit

14.40GB/s

Bandwidth

6.400GB/s

Render Config

5

Compute Units

-

SM Count

1

320

Shading Units

8

20

TMUs

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

16 KB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

1.600 GPixel/s

19.50 GTexel/s

Texture Rate

3.200 GTexel/s

-

624.0 GFLOPS

FP32 (float)

12.80 GFLOPS

39.00 GFLOPS

FP64 (double)

-

Board Design

Unknown

TDP

10W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

G86

Sun S3 XT (216-0841009)

GPU Variant

NB8M-SE

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

0.69 billion

Transistors

0.21 billion

56 mm²

Die Size

127 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1 (1.2)

OpenCL

1.1

1.2.170

Vulkan

N/A

-

CUDA

1.1

6.5 (5.1)

Shader Model

4.0

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