NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon R9 390X

VS

NVIDIA GeForce 8400 GS Rev. 3

AMD Radeon R9 390X

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Lower TDP (25W vs 275W)

AMD Radeon R9 390X 's Advantages

Released 4 years and 11 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 6.400GB/s)

2808 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS Rev. 3

0.02 TFLOPS

Radeon R9 390X +29470%

5.914 TFLOPS

GeForce 8400 GS Rev. 3

VS

Radeon R9 390X

Graphics Card

Jul 2010

Release Date

Jun 2015

GeForce 8

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

8GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

512bit

6.400GB/s

Bandwidth

384.0GB/s

Render Config

-

Compute Units

44

1

SM Count

-

8

Shading Units

2816

4

TMUs

176

4

ROPs

64

-

L1 Cache

16 KB (per CU)

32 KB

L2 Cache

1024 KB

-

Theoretical Performance

2.080 GPixel/s

Pixel Rate

67.20 GPixel/s

2.080 GTexel/s

Texture Rate

184.8 GTexel/s

-

19.68 GFLOPS

FP32 (float)

5.914 TFLOPS

-

FP64 (double)

739.2 GFLOPS

Board Design

25W

TDP

275W

200 W

Suggested PSU

600 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GT218

GPU Name

Grenada

8400GS-225-B1

GPU Variant

Grenada XT (215-0880004)

Tesla 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.26 billion

Transistors

6.2 billion

57 mm²

Die Size

438 mm²

Graphics Features

11.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

CUDA

-

4.1

Shader Model

6.3

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