ATI Radeon HD 5770 Mac Edition vs NVIDIA GeForce GT 640 OEM Rebrand

VS

ATI Radeon HD 5770 Mac Edition

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 Mac Edition and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5770 Mac Edition 's Advantages

Larger VRAM bandwidth (76.48GB/s vs 38.40GB/s)

656 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Released 1 years and 9 months late

More VRAM (1536GB vs 1024GB)

Lower TDP (75W vs 108W)

Score

Benchmark

FP32 (float)

Radeon HD 5770 Mac Edition +227%

1.36 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

Radeon HD 5770 Mac Edition

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jul 2010

Release Date

Apr 2012

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1195 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

192bit

76.48GB/s

Bandwidth

38.40GB/s

Render Config

10

Compute Units

-

SM Count

3

800

Shading Units

144

40

TMUs

24

16

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

4.320 GPixel/s

34.00 GTexel/s

Texture Rate

17.28 GTexel/s

-

1360 GFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

34.56 GFLOPS

Board Design

108W

TDP

75W

300 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.1

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

Juniper

GPU Name

GF116

Juniper XT (215-0754013)

GPU Variant

GF116-150-A1

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.04 billion

Transistors

1.17 billion

166 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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