ATI Radeon HD 4870 Mac Edition vs NVIDIA GeForce 8500 GT

VS

ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce 8500 GT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 256MB VRAM GeForce 8500 GT 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 9 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (108.8GB/s vs 12.80GB/s)

784 additional rendering cores

NVIDIA GeForce 8500 GT 's Advantages

Lower TDP (30W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +4037%

1.2 TFLOPS

GeForce 8500 GT

0.029 TFLOPS

Radeon HD 4870 Mac Edition

VS

GeForce 8500 GT

Graphics Card

Jan 2009

Release Date

Apr 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

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

108.8GB/s

Bandwidth

12.80GB/s

Render Config

10

Compute Units

-

SM Count

2

800

Shading Units

16

40

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

32 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

1.836 GPixel/s

30.00 GTexel/s

Texture Rate

3.672 GTexel/s

-

1200 GFLOPS

FP32 (float)

29.38 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

30W

450 W

Suggested PSU

200 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x DVI 1x VGA 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

G86

RV770 XT Mac (215-0669080)

GPU Variant

G86-300-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.956 billion

Transistors

0.21 billion

256 mm²

Die Size

127 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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