ATI FirePro V7900 SDI vs NVIDIA GeForce 8400 GS Rev. 3

VS

ATI FirePro V7900 SDI

NVIDIA GeForce 8400 GS Rev. 3

We compared two Desktop platform GPUs: 2GB VRAM FirePro V7900 SDI and 512MB VRAM GeForce 8400 GS Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI FirePro V7900 SDI 's Advantages

Released 10 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (160.0GB/s vs 6.400GB/s)

1272 additional rendering cores

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Lower TDP (25W vs 150W)

Score

Benchmark

FP32 (float)

FirePro V7900 SDI +9180%

1.856 TFLOPS

GeForce 8400 GS Rev. 3

0.02 TFLOPS

FirePro V7900 SDI

VS

GeForce 8400 GS Rev. 3

Graphics Card

May 2011

Release Date

Jul 2010

FirePro

Generation

GeForce 8

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

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

6.400GB/s

Render Config

20

Compute Units

-

SM Count

1

1280

Shading Units

8

80

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

-

Theoretical Performance

23.20 GPixel/s

Pixel Rate

2.080 GPixel/s

58.00 GTexel/s

Texture Rate

2.080 GTexel/s

-

1.856 TFLOPS

FP32 (float)

19.68 GFLOPS

464.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

25W

450 W

Suggested PSU

200 W

4x SDI

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

Cayman

GPU Name

GT218

Cayman PRO GL

GPU Variant

8400GS-225-B1

TeraScale 3

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

0.26 billion

389 mm²

Die Size

57 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.2

5.0

Shader Model

4.1

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