NVIDIA GeForce 9400 GT PCI vs AMD Radeon HD 6970

VS

NVIDIA GeForce 9400 GT PCI

AMD Radeon HD 6970

We compared two Desktop platform GPUs: 256MB VRAM GeForce 9400 GT PCI and 2GB VRAM Radeon HD 6970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT PCI 's Advantages

Lower TDP (50W vs 250W)

AMD Radeon HD 6970 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (176.0GB/s vs 12.80GB/s)

1520 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon HD 6970 +5906%

2.703 TFLOPS

GeForce 9400 GT PCI

VS

Radeon HD 6970

Graphics Card

Aug 2008

Release Date

Dec 2010

GeForce 9

Generation

Northern Islands

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1375 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

176.0GB/s

Render Config

-

Compute Units

24

2

SM Count

-

16

Shading Units

1536

8

TMUs

96

4

ROPs

32

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

512 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

28.16 GPixel/s

4.400 GTexel/s

Texture Rate

84.48 GTexel/s

-

44.80 GFLOPS

FP32 (float)

2.703 TFLOPS

-

FP64 (double)

675.8 GFLOPS

Board Design

50W

TDP

250W

250 W

Suggested PSU

600 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

G96C

GPU Name

Cayman

-

GPU Variant

Cayman XT (215-0807007)

Tesla

Architecture

TeraScale 3

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.314 billion

Transistors

2.64 billion

121 mm²

Die Size

389 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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