NVIDIA GeForce 8400M GS vs AMD Radeon HD 8790M

VS

NVIDIA GeForce 8400M GS

AMD Radeon HD 8790M

We compared two Mobile platform GPUs: 256MB VRAM GeForce 8400M GS and 2GB VRAM Radeon HD 8790M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8790M 's Advantages

Released 5 years and 11 months late

Boost Clock900MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)

368 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400M GS

0.026 TFLOPS

Radeon HD 8790M +2557%

0.691 TFLOPS

GeForce 8400M GS

VS

Radeon HD 8790M

Graphics Card

May 2007

Release Date

Apr 2013

GeForce 8M

Generation

Solar System

Mobile

Type

Mobile

MXM-I

Bus Interface

MXM-A (3.0)

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

900 MHz

400 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

6

2

SM Count

-

16

Shading Units

384

8

TMUs

24

4

ROPs

8

-

L1 Cache

16 KB (per CU)

16 KB

L2 Cache

256 KB

-

Theoretical Performance

1.600 GPixel/s

Pixel Rate

7.200 GPixel/s

3.200 GTexel/s

Texture Rate

21.60 GTexel/s

-

25.60 GFLOPS

FP32 (float)

691.2 GFLOPS

-

FP64 (double)

43.20 GFLOPS

Board Design

11W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

G86

GPU Name

Mars

NB8M-GS

GPU Variant

Mars M2 XTX (216-0842036)

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

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

2.1 (1.2)

N/A

Vulkan

1.2.170

1.1

CUDA

-

4.0

Shader Model

6.5 (5.1)

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