NVIDIA GeForce GTX 645 OEM vs ATI FirePro V7900 SDI

VS

NVIDIA GeForce GTX 645 OEM

ATI FirePro V7900 SDI

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM 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 GTX 645 OEM 's Advantages

Released 1 years and 11 months late

Lower TDP (65W vs 150W)

ATI FirePro V7900 SDI 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)

704 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM

0.949 TFLOPS

FirePro V7900 SDI +95%

1.856 TFLOPS

GeForce GTX 645 OEM

VS

FirePro V7900 SDI

Graphics Card

Apr 2013

Release Date

May 2011

GeForce 600

Generation

FirePro

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

20

-

576

Shading Units

1280

48

TMUs

80

16

ROPs

32

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

23.20 GPixel/s

39.55 GTexel/s

Texture Rate

58.00 GTexel/s

-

949.2 GFLOPS

FP32 (float)

1.856 TFLOPS

39.55 GFLOPS

FP64 (double)

464.0 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

4x SDI

None

Power Connectors

1x 6-pin

Graphics Processor

GK106

GPU Name

Cayman

GK106-200-A1

GPU Variant

Cayman PRO GL

Kepler

Architecture

TeraScale 3

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.54 billion

Transistors

2.64 billion

221 mm²

Die Size

389 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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