ATI Radeon HD 4860 vs AMD Radeon Sky 500

VS

ATI Radeon HD 4860

AMD Radeon Sky 500

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4860 and 4GB VRAM Radeon Sky 500 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4860 's Advantages

Lower TDP (130W vs 150W)

AMD Radeon Sky 500 's Advantages

Released 3 years and 6 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (153.6GB/s vs 96.00GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4860

0.896 TFLOPS

Radeon Sky 500 +171%

2.432 TFLOPS

Radeon HD 4860

VS

Radeon Sky 500

Graphics Card

Sep 2009

Release Date

Mar 2013

Radeon R700

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

750 MHz

Memory Clock

1200 MHz

Memory

512MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

96.00GB/s

Bandwidth

153.6GB/s

Render Config

8

Compute Units

20

-

640

Shading Units

1280

32

TMUs

80

16

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

11.20 GPixel/s

Pixel Rate

30.40 GPixel/s

22.40 GTexel/s

Texture Rate

76.00 GTexel/s

-

896.0 GFLOPS

FP32 (float)

2.432 TFLOPS

179.2 GFLOPS

FP64 (double)

152.0 GFLOPS

Board Design

130W

TDP

150W

300 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DisplayPort 1.2

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

RV790

GPU Name

Pitcairn

RV790 GT

GPU Variant

Pitcairn XT GL (215-0828073)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.959 billion

Transistors

2.8 billion

282 mm²

Die Size

212 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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