NVIDIA GeForce 8400 vs ATI FirePro V7900 SDI

VS

NVIDIA GeForce 8400

ATI FirePro V7900 SDI

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 and 2GB VRAM FirePro V7900 SDI to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 150W)

ATI FirePro V7900 SDI 's Advantages

Released 3 years and 5 months late

More VRAM (2GB vs 256GB)

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

1272 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

FirePro V7900 SDI +8738%

1.856 TFLOPS

GeForce 8400

VS

FirePro V7900 SDI

Graphics Card

Dec 2007

Release Date

May 2011

GeForce 8

Generation

FirePro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

20

1

SM Count

-

8

Shading Units

1280

4

TMUs

80

4

ROPs

32

-

L1 Cache

8 KB (per CU)

16 KB

L2 Cache

512 KB

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

23.20 GPixel/s

2.160 GTexel/s

Texture Rate

58.00 GTexel/s

-

20.80 GFLOPS

FP32 (float)

1.856 TFLOPS

-

FP64 (double)

464.0 GFLOPS

Board Design

25W

TDP

150W

200 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

4x SDI

None

Power Connectors

1x 6-pin

Graphics Processor

G98

GPU Name

Cayman

-

GPU Variant

Cayman PRO GL

Tesla

Architecture

TeraScale 3

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.21 billion

Transistors

2.64 billion

86 mm²

Die Size

389 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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