ATI Radeon X1950 GT vs ATI Radeon HD 4870 Mac Edition

VS

ATI Radeon X1950 GT

ATI Radeon HD 4870 Mac Edition

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1950 GT 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

ATI Radeon X1950 GT 's Advantages

Lower TDP (57W vs 150W)

ATI Radeon HD 4870 Mac Edition 's Advantages

Released 2 years late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (108.8GB/s vs 38.40GB/s)

800 additional rendering cores

Score

Radeon X1950 GT

VS

Radeon HD 4870 Mac Edition

Graphics Card

Jan 2007

Release Date

Jan 2009

Radeon R500 PCIe

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

600 MHz

Memory Clock

850 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

256bit

38.40GB/s

Bandwidth

108.8GB/s

Render Config

-

Compute Units

10

-

Shading Units

800

12

TMUs

40

12

ROPs

16

-

L1 Cache

16 KB (per CU)

-

L2 Cache

256 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

12.00 GPixel/s

6.000 GTexel/s

Texture Rate

30.00 GTexel/s

-

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

57W

TDP

150W

250 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DVI 1x mini-DisplayPort 1.0

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV570

GPU Name

RV770

RV570 XL

GPU Variant

RV770 XT Mac (215-0669080)

R500

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.33 billion

Transistors

0.956 billion

230 mm²

Die Size

256 mm²

Graphics Features

9.0c (9_3)

DirectX

10.1 (10_1)

2.1 (full) 3.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

3.0

Shader Model

4.1

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