NVIDIA GeForce 9400 GT vs AMD Radeon HD 6950

VS

NVIDIA GeForce 9400 GT

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 128MB VRAM GeForce 9400 GT and 2GB VRAM Radeon HD 6950 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 200W)

AMD Radeon HD 6950 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (160.0GB/s vs 9.600GB/s)

1392 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT

0.029 TFLOPS

Radeon HD 6950 +7668%

2.253 TFLOPS

GeForce 9400 GT

VS

Radeon HD 6950

Graphics Card

Aug 2008

Release Date

Dec 2010

GeForce 9

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

1250 MHz

Memory

128MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

9.600GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

22

2

SM Count

-

16

Shading Units

1408

8

TMUs

88

4

ROPs

32

-

L1 Cache

8 KB (per CU)

16 KB

L2 Cache

512 KB

-

Theoretical Performance

1.836 GPixel/s

Pixel Rate

25.60 GPixel/s

3.672 GTexel/s

Texture Rate

70.40 GTexel/s

-

29.38 GFLOPS

FP32 (float)

2.253 TFLOPS

-

FP64 (double)

563.2 GFLOPS

Board Design

50W

TDP

200W

250 W

Suggested PSU

550 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

G86

GPU Name

Cayman

-

GPU Variant

Cayman PRO (215-0807019)

Tesla

Architecture

TeraScale 3

TSMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.21 billion

Transistors

2.64 billion

127 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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