ATI Radeon HD 4870 Mac Edition vs NVIDIA GeForce 8800 Ultra

VS

ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 768MB VRAM GeForce 8800 Ultra 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

Released 1 years and 8 months late

Larger VRAM bandwidth (108.8GB/s vs 103.7GB/s)

672 additional rendering cores

Lower TDP (150W vs 171W)

NVIDIA GeForce 8800 Ultra 's Advantages

More VRAM (768GB vs 512GB)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +210%

1.2 TFLOPS

GeForce 8800 Ultra

0.387 TFLOPS

Radeon HD 4870 Mac Edition

VS

GeForce 8800 Ultra

Graphics Card

Jan 2009

Release Date

May 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

850 MHz

Memory Clock

1080 MHz

Memory

512MB

Memory Size

768MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

384bit

108.8GB/s

Bandwidth

103.7GB/s

Render Config

10

Compute Units

-

SM Count

16

800

Shading Units

128

40

TMUs

32

16

ROPs

24

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

96 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

14.69 GPixel/s

30.00 GTexel/s

Texture Rate

39.17 GTexel/s

-

1200 GFLOPS

FP32 (float)

387.1 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

171W

450 W

Suggested PSU

450 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV770

GPU Name

G80

RV770 XT Mac (215-0669080)

GPU Variant

G80-450-A3

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

90 nm

0.956 billion

Transistors

0.681 billion

256 mm²

Die Size

484 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

4.1

Shader Model

4.0

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