AMD Radeon HD 6850 vs NVIDIA GeForce 9400 GT PCI

VS

AMD Radeon HD 6850

NVIDIA GeForce 9400 GT PCI

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 256MB VRAM GeForce 9400 GT PCI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Released 2 years and 2 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (128.0GB/s vs 12.80GB/s)

944 additional rendering cores

NVIDIA GeForce 9400 GT PCI 's Advantages

Lower TDP (50W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +3206%

1.488 TFLOPS

GeForce 9400 GT PCI

0.045 TFLOPS

Radeon HD 6850

VS

GeForce 9400 GT PCI

Graphics Card

Oct 2010

Release Date

Aug 2008

Northern Islands

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

12.80GB/s

Render Config

12

Compute Units

-

SM Count

2

960

Shading Units

16

48

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

2.200 GPixel/s

37.20 GTexel/s

Texture Rate

4.400 GTexel/s

-

1488 GFLOPS

FP32 (float)

44.80 GFLOPS

-

Board Design

127W

TDP

50W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

G96C

Barts PRO (215-0798006)

GPU Variant

-

TeraScale 2

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.314 billion

255 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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