AMD Radeon HD 6950 vs NVIDIA GeForce 9400 GT Rev. 2

VS

AMD Radeon HD 6950

NVIDIA GeForce 9400 GT Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6950 and 512MB VRAM GeForce 9400 GT Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6950 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 12.80GB/s)

1392 additional rendering cores

NVIDIA GeForce 9400 GT Rev. 2 's Advantages

Lower TDP (50W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 6950 +4906%

2.253 TFLOPS

GeForce 9400 GT Rev. 2

0.045 TFLOPS

Radeon HD 6950

VS

GeForce 9400 GT Rev. 2

Graphics Card

Dec 2010

Release Date

Aug 2008

Northern Islands

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

12.80GB/s

Render Config

22

Compute Units

-

SM Count

2

1408

Shading Units

16

88

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.200 GPixel/s

70.40 GTexel/s

Texture Rate

4.400 GTexel/s

-

2.253 TFLOPS

FP32 (float)

44.80 GFLOPS

563.2 GFLOPS

FP64 (double)

-

Board Design

200W

TDP

50W

550 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

Cayman

GPU Name

G96C

Cayman PRO (215-0807019)

GPU Variant

-

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.314 billion

389 mm²

Die Size

121 mm²

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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