AMD Radeon HD 6870 vs NVIDIA GeForce 9400 GT Rev. 2

VS

AMD Radeon HD 6870 NVIDIA GeForce 9400 GT Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 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 6870 's Advantages

Released 2 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 12.80GB/s)

1104 additional rendering cores

NVIDIA GeForce 9400 GT Rev. 2 's Advantages

Lower TDP (50W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +4380%

2.016 TFLOPS

GeForce 9400 GT Rev. 2

0.045 TFLOPS

Radeon HD 6870

VS

GeForce 9400 GT Rev. 2

Graphics Card

Oct 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

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

14

Compute Units

-

1120

Shading Units

16

56

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.200 GPixel/s

50.40 GTexel/s

Texture Rate

4.400 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

44.80 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

G96C

Barts XT (215-0798000)

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

Board Design

151W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

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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