NVIDIA GeForce 9800 GX2 vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA GeForce 9800 GX2

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GX2 and 1024MB VRAM GeForce GTX 645 OEM 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 5 years and 1 months late

More VRAM (1024GB vs 512GB)

448 additional rendering cores

Lower TDP (65W vs 197W)

Score

Benchmark

FP32 (float)

GeForce 9800 GX2

0.384 TFLOPS

GeForce GTX 645 OEM +147%

0.949 TFLOPS

GeForce 9800 GX2

VS

GeForce GTX 645 OEM

Graphics Card

Mar 2008

Release Date

Apr 2013

GeForce 9

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

64.00GB/s

Bandwidth

64.00GB/s

Render Config

-

16

SM Count

-

128

Shading Units

576

64

TMUs

48

16

ROPs

16

-

L1 Cache

16 KB (per SMX)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

9.888 GPixel/s

38.40 GTexel/s

Texture Rate

39.55 GTexel/s

-

384.0 GFLOPS

FP32 (float)

949.2 GFLOPS

-

FP64 (double)

39.55 GFLOPS

Board Design

197W

TDP

65W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

G92

GPU Name

GK106

G92-450-A2

GPU Variant

GK106-200-A1

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.754 billion

Transistors

2.54 billion

324 mm²

Die Size

221 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

CUDA

3.0

4.0

Shader Model

5.1

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