NVIDIA GeForce GTX 650 vs ATI Radeon HD 4870 Mac Edition

VS

NVIDIA GeForce GTX 650

ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 and 512MB VRAM Radeon HD 4870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 's Advantages

Released 3 years and 8 months late

More VRAM (1024GB vs 512GB)

Lower TDP (65W vs 150W)

ATI Radeon HD 4870 Mac Edition 's Advantages

Larger VRAM bandwidth (108.8GB/s vs 80.00GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 650

0.812 TFLOPS

Radeon HD 4870 Mac Edition +47%

1.2 TFLOPS

GeForce GTX 650

VS

Radeon HD 4870 Mac Edition

Graphics Card

Sep 2012

Release Date

Jan 2009

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

80.00GB/s

Bandwidth

108.8GB/s

Render Config

-

Compute Units

10

-

384

Shading Units

800

32

TMUs

40

16

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

12.00 GPixel/s

33.86 GTexel/s

Texture Rate

30.00 GTexel/s

-

812.5 GFLOPS

FP32 (float)

1200 GFLOPS

33.86 GFLOPS

FP64 (double)

240.0 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.4a

Outputs

1x DVI 1x mini-DisplayPort 1.0

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GK107

GPU Name

RV770

GK107-450-A2

GPU Variant

RV770 XT Mac (215-0669080)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.956 billion

118 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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