AMD FireStream 9270 vs NVIDIA GeForce GT 645 OEM

VS

AMD FireStream 9270

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 2GB VRAM FireStream 9270 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD FireStream 9270 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 91.87GB/s)

512 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Released 3 years and 5 months late

Lower TDP (102W vs 160W)

Score

Benchmark

FP32 (float)

FireStream 9270 +34%

1.2 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

FireStream 9270

VS

GeForce GT 645 OEM

Graphics Card

Nov 2008

Release Date

Apr 2012

FireStream

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

957 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

115.2GB/s

Bandwidth

91.87GB/s

Render Config

10

Compute Units

-

SM Count

6

800

Shading Units

288

40

TMUs

48

16

ROPs

24

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

9.312 GPixel/s

30.00 GTexel/s

Texture Rate

37.25 GTexel/s

-

1200 GFLOPS

FP32 (float)

894.0 GFLOPS

240.0 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

160W

TDP

102W

450 W

Suggested PSU

300 W

1x DVI

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

-

Graphics Processor

RV770

GPU Name

GF114

RV770 XT

GPU Variant

-

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

1.95 billion

256 mm²

Die Size

332 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.1

Shader Model

5.1

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