AMD Radeon R9 390X vs NVIDIA GeForce 9400 GT PCI

VS

AMD Radeon R9 390X

NVIDIA GeForce 9400 GT PCI

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 256MB VRAM GeForce 9400 GT PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 6 years and 10 months late

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (384.0GB/s vs 12.80GB/s)

2800 additional rendering cores

NVIDIA GeForce 9400 GT PCI 's Advantages

Lower TDP (50W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +13042%

5.914 TFLOPS

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon R9 390X

VS

GeForce 9400 GT PCI

Graphics Card

Jun 2015

Release Date

Aug 2008

Pirate Islands

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCI

Clock Speeds

-

1500 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

12.80GB/s

Render Config

44

Compute Units

-

SM Count

2

2816

Shading Units

16

176

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

32 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

2.200 GPixel/s

184.8 GTexel/s

Texture Rate

4.400 GTexel/s

-

5.914 TFLOPS

FP32 (float)

44.80 GFLOPS

739.2 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

G96C

Grenada XT (215-0880004)

GPU Variant

-

GCN 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.314 billion

438 mm²

Die Size

121 mm²

Graphics Features

12 (12_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

6.3

Shader Model

4.0

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