NVIDIA GeForce 8400 GS PCI Rev. 2 vs AMD Radeon HD 6950

VS

NVIDIA GeForce 8400 GS PCI Rev. 2 AMD Radeon HD 6950

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS PCI Rev. 2 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 8400 GS PCI Rev. 2 's Advantages

Lower TDP (40W vs 200W)

AMD Radeon HD 6950 's Advantages

Released 3 years and 8 months late

Larger VRAM bandwidth (160.0GB/s vs 8.000GB/s)

1392 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS PCI Rev. 2

0.039 TFLOPS

Radeon HD 6950 +5676%

2.253 TFLOPS

GeForce 8400 GS PCI Rev. 2

VS

Radeon HD 6950

Graphics Card

Apr 2007

Release Date

Dec 2010

GeForce 8

Generation

Northern Islands

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

500 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

160.0GB/s

Render Config

2

SM Count

-

Compute Units

22

16

Shading Units

1408

8

TMUs

88

4

ROPs

32

-

Tensor Cores

-

RT Cores

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

512 KB

Theoretical Performance

2.080 GPixel/s

Pixel Rate

25.60 GPixel/s

4.160 GTexel/s

Texture Rate

70.40 GTexel/s

-

FP16 (half)

-

39.36 GFLOPS

FP32 (float)

2.253 TFLOPS

-

FP64 (double)

563.2 GFLOPS

Graphics Processor

GT218

GPU Name

Cayman

-

GPU Variant

Cayman PRO (215-0807019)

Tesla 2.0

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.26 billion

Transistors

2.64 billion

57 mm²

Die Size

389 mm²

Board Design

40W

TDP

200W

200 W

Suggested PSU

550 W

1x DVI 1x HDMI 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Features

11.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.2

CUDA

-

4.1

Shader Model

5.0

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