AMD Radeon HD 6790 vs NVIDIA GeForce 9400 GT

VS

AMD Radeon HD 6790 NVIDIA GeForce 9400 GT

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

Main Differences

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

NVIDIA GeForce 9400 GT 's Advantages

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790 +4534%

1.344 TFLOPS

GeForce 9400 GT

0.029 TFLOPS

Radeon HD 6790

VS

GeForce 9400 GT

Graphics Card

Apr 2011

Release Date

Aug 2008

Northern Islands

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

600 MHz

Memory

1024MB

Memory Size

128MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

9.600GB/s

Render Config

-

SM Count

2

10

Compute Units

-

800

Shading Units

16

40

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

Theoretical Performance

13.44 GPixel/s

Pixel Rate

1.836 GPixel/s

33.60 GTexel/s

Texture Rate

3.672 GTexel/s

-

FP16 (half)

-

1344 GFLOPS

FP32 (float)

29.38 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

G86

Barts LE (215-0798002)

GPU Variant

-

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.21 billion

255 mm²

Die Size

127 mm²

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

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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