ATI Mobility Radeon HD 4860 vs NVIDIA GeForce GT 640M Mac Edition

VS

ATI Mobility Radeon HD 4860

NVIDIA GeForce GT 640M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Mobility Radeon HD 4860 and 512MB VRAM GeForce GT 640M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 4860 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 40.00GB/s)

256 additional rendering cores

NVIDIA GeForce GT 640M Mac Edition 's Advantages

Released 3 years and 11 months late

Score

Benchmark

FP32 (float)

Mobility Radeon HD 4860 +45%

0.832 TFLOPS

GeForce GT 640M Mac Edition

0.572 TFLOPS

Mobility Radeon HD 4860

VS

GeForce GT 640M Mac Edition

Graphics Card

Mar 2009

Release Date

Feb 2013

M9x

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

40.00GB/s

Render Config

8

Compute Units

-

640

Shading Units

384

32

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

10.40 GPixel/s

Pixel Rate

5.960 GPixel/s

20.80 GTexel/s

Texture Rate

23.84 GTexel/s

-

832.0 GFLOPS

FP32 (float)

572.2 GFLOPS

166.4 GFLOPS

FP64 (double)

23.84 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

M97

GPU Name

GK107

M97 M2 XT (216-0731000)

GPU Variant

N13P-GS

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.826 billion

Transistors

1.27 billion

137 mm²

Die Size

118 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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