AMD Radeon Sky 700 vs ATI Radeon HD 4850

VS

AMD Radeon Sky 700

ATI Radeon HD 4850

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 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 Sky 700 's Advantages

Released 4 years and 9 months late

More VRAM (6GB vs 512GB)

Larger VRAM bandwidth (264.0GB/s vs 63.55GB/s)

992 additional rendering cores

ATI Radeon HD 4850 's Advantages

Lower TDP (110W vs 225W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +222%

3.226 TFLOPS

Radeon HD 4850

1 TFLOPS

Radeon Sky 700

VS

Radeon HD 4850

Graphics Card

Mar 2013

Release Date

Jun 2008

Radeon Sky

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

993 MHz

Memory

6GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

256bit

264.0GB/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

28.80 GPixel/s

Pixel Rate

10.00 GPixel/s

100.8 GTexel/s

Texture Rate

25.00 GTexel/s

-

3.226 TFLOPS

FP32 (float)

1000 GFLOPS

806.4 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

225W

TDP

110W

550 W

Suggested PSU

300 W

1x DisplayPort 1.2

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

RV770

Tahiti PRO GL

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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