AMD Radeon HD 8950 OEM vs ATI Radeon HD 4850

VS

AMD Radeon HD 8950 OEM

ATI Radeon HD 4850

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8950 OEM and 512MB VRAM Radeon HD 4850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8950 OEM 's Advantages

Released 4 years and 7 months late

Boost Clock925MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 63.55GB/s)

992 additional rendering cores

ATI Radeon HD 4850 's Advantages

Lower TDP (110W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 8950 OEM +231%

3.315 TFLOPS

Radeon HD 4850

1 TFLOPS

Radeon HD 8950 OEM

VS

Radeon HD 4850

Graphics Card

Jan 2013

Release Date

Jun 2008

Sea Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

850 MHz

Base Clock

-

925 MHz

Boost Clock

-

1250 MHz

Memory Clock

993 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

63.55GB/s

Render Config

28

Compute Units

10

-

1792

Shading Units

800

112

TMUs

40

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

10.00 GPixel/s

103.6 GTexel/s

Texture Rate

25.00 GTexel/s

-

3.315 TFLOPS

FP32 (float)

1000 GFLOPS

828.8 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

200W

TDP

110W

550 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

RV770

Tahiti PRO (215-0821056)

GPU Variant

RV770 PRO (215-0669065)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.956 billion

352 mm²

Die Size

256 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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