ATI Radeon HD 4870 Mac Edition vs NVIDIA GeForce GTX 650 Ti Boost

VS

ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce GTX 650 Ti Boost

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 2GB VRAM GeForce GTX 650 Ti Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 Mac Edition 's Advantages

32 additional rendering cores

NVIDIA GeForce GTX 650 Ti Boost 's Advantages

Released 4 years and 2 months late

Boost Clock1032MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 108.8GB/s)

Lower TDP (134W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition

1.2 TFLOPS

GeForce GTX 650 Ti Boost +32%

1.585 TFLOPS

Radeon HD 4870 Mac Edition

VS

GeForce GTX 650 Ti Boost

Graphics Card

Jan 2009

Release Date

Mar 2013

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

850 MHz

Memory Clock

1502 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

108.8GB/s

Bandwidth

144.2GB/s

Render Config

10

Compute Units

-

800

Shading Units

768

40

TMUs

64

16

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

16.51 GPixel/s

30.00 GTexel/s

Texture Rate

66.05 GTexel/s

-

1200 GFLOPS

FP32 (float)

1.585 TFLOPS

240.0 GFLOPS

FP64 (double)

66.05 GFLOPS

Board Design

150W

TDP

134W

450 W

Suggested PSU

300 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV770

GPU Name

GK106

RV770 XT Mac (215-0669080)

GPU Variant

GK106-240-A1

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

2.54 billion

256 mm²

Die Size

221 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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