NVIDIA GeForce 9400 GT vs AMD Radeon HD 6790

VS

NVIDIA GeForce 9400 GT

AMD Radeon HD 6790

We compared two Desktop platform GPUs: 128MB VRAM GeForce 9400 GT and 1024MB VRAM Radeon HD 6790 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT 's Advantages

Lower TDP (50W vs 150W)

AMD Radeon HD 6790 's Advantages

Released 2 years and 8 months late

More VRAM (1024GB vs 128GB)

Larger VRAM bandwidth (134.4GB/s vs 9.600GB/s)

784 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT

0.029 TFLOPS

Radeon HD 6790 +4534%

1.344 TFLOPS

GeForce 9400 GT

VS

Radeon HD 6790

Graphics Card

Aug 2008

Release Date

Apr 2011

GeForce 9

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

1050 MHz

Memory

128MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

9.600GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

10

2

SM Count

-

16

Shading Units

800

8

TMUs

40

4

ROPs

16

-

L1 Cache

8 KB (per CU)

16 KB

L2 Cache

512 KB

-

Theoretical Performance

1.836 GPixel/s

Pixel Rate

13.44 GPixel/s

3.672 GTexel/s

Texture Rate

33.60 GTexel/s

-

29.38 GFLOPS

FP32 (float)

1344 GFLOPS

-

Board Design

50W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

None

Power Connectors

2x 6-pin

Graphics Processor

G86

GPU Name

Barts

-

GPU Variant

Barts LE (215-0798002)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.21 billion

Transistors

1.7 billion

127 mm²

Die Size

255 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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