ATI Radeon HD 4870 Mac Edition vs NVIDIA GeForce G100 OEM

VS

ATI Radeon HD 4870 Mac Edition

NVIDIA GeForce G100 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 Mac Edition and 256MB VRAM GeForce G100 OEM 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

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (108.8GB/s vs 6.400GB/s)

792 additional rendering cores

NVIDIA GeForce G100 OEM 's Advantages

Lower TDP (35W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 Mac Edition +5614%

1.2 TFLOPS

GeForce G100 OEM

0.021 TFLOPS

Radeon HD 4870 Mac Edition

VS

GeForce G100 OEM

Graphics Card

Jan 2009

Release Date

Mar 2009

Radeon R700

Generation

GeForce 100

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

850 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

108.8GB/s

Bandwidth

6.400GB/s

Render Config

10

Compute Units

-

SM Count

1

800

Shading Units

8

40

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

16 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

2.160 GPixel/s

30.00 GTexel/s

Texture Rate

2.160 GTexel/s

-

1200 GFLOPS

FP32 (float)

20.80 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

35W

450 W

Suggested PSU

200 W

1x DVI 1x mini-DisplayPort 1.0

Outputs

1x DVI 1x S-Video

2x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

G98

RV770 XT Mac (215-0669080)

GPU Variant

G98-309-U2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

65 nm

0.956 billion

Transistors

0.21 billion

256 mm²

Die Size

86 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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