NVIDIA GeForce GT 645 OEM vs ATI Radeon HD 5770 Mac Edition

VS

NVIDIA GeForce GT 645 OEM

ATI Radeon HD 5770 Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM Radeon HD 5770 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 1 years and 9 months late

Larger VRAM bandwidth (91.87GB/s vs 76.48GB/s)

Lower TDP (102W vs 108W)

ATI Radeon HD 5770 Mac Edition 's Advantages

512 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

Radeon HD 5770 Mac Edition +52%

1.36 TFLOPS

GeForce GT 645 OEM

VS

Radeon HD 5770 Mac Edition

Graphics Card

Apr 2012

Release Date

Jul 2010

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1195 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

76.48GB/s

Render Config

-

Compute Units

10

6

SM Count

-

288

Shading Units

800

48

TMUs

40

24

ROPs

16

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

13.60 GPixel/s

37.25 GTexel/s

Texture Rate

34.00 GTexel/s

-

894.0 GFLOPS

FP32 (float)

1360 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

108W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x DisplayPort 1.1

-

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

Juniper

-

GPU Variant

Juniper XT (215-0754013)

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

1.04 billion

332 mm²

Die Size

166 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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