AMD Radeon R9 390 X2 vs NVIDIA GeForce 8400 SE

VS

AMD Radeon R9 390 X2

NVIDIA GeForce 8400 SE

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 128MB VRAM GeForce 8400 SE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 7 years and 1 months late

More VRAM (8GB vs 128GB)

Larger VRAM bandwidth (345.6GB/s vs 6.400GB/s)

2544 additional rendering cores

NVIDIA GeForce 8400 SE 's Advantages

Lower TDP (50W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +17555%

5.12 TFLOPS

GeForce 8400 SE

0.029 TFLOPS

Radeon R9 390 X2

VS

GeForce 8400 SE

Graphics Card

Sep 2015

Release Date

Aug 2008

Pirate Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1350 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

128MB

GDDR5

Memory Type

DDR2

512bit

Memory Bus

64bit

345.6GB/s

Bandwidth

6.400GB/s

Render Config

40

Compute Units

-

SM Count

2

2560

Shading Units

16

160

TMUs

8

64

ROPs

4

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

16 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

1.836 GPixel/s

160.0 GTexel/s

Texture Rate

3.672 GTexel/s

-

5.120 TFLOPS

FP32 (float)

29.38 GFLOPS

640.0 GFLOPS

FP64 (double)

-

Board Design

580W

TDP

50W

950 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

G86S

Grenada PRO (215-0880030)

GPU Variant

-

GCN 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

6.2 billion

Transistors

0.21 billion

438 mm²

Die Size

127 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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