AMD Radeon HD 6390 vs NVIDIA GeForce 8400 GS Rev. 2

VS

AMD Radeon HD 6390

NVIDIA GeForce 8400 GS Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 and 512MB VRAM GeForce 8400 GS Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6390 's Advantages

Released 3 years and 7 months late

More VRAM (1024GB vs 512GB)

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

312 additional rendering cores

NVIDIA GeForce 8400 GS Rev. 2 's Advantages

Lower TDP (25W vs 39W)

Score

Benchmark

FP32 (float)

Radeon HD 6390 +1500%

0.352 TFLOPS

GeForce 8400 GS Rev. 2

0.022 TFLOPS

Radeon HD 6390

VS

GeForce 8400 GS Rev. 2

Graphics Card

Jul 2011

Release Date

Dec 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

DDR2

128bit

Memory Bus

64bit

16.00GB/s

Bandwidth

6.400GB/s

Render Config

4

Compute Units

-

SM Count

1

320

Shading Units

8

16

TMUs

4

8

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

16 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

2.268 GPixel/s

8.800 GTexel/s

Texture Rate

2.268 GTexel/s

-

352.0 GFLOPS

FP32 (float)

22.40 GFLOPS

-

Board Design

39W

TDP

25W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

Redwood

GPU Name

G98

Redwood LE

GPU Variant

-

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

0.627 billion

Transistors

0.21 billion

104 mm²

Die Size

86 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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