AMD Radeon HD 7850 vs ATI Radeon HD 4860

VS

AMD Radeon HD 7850

ATI Radeon HD 4860

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 512MB VRAM Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Released 2 years and 6 months late

More VRAM (2GB vs 512GB)

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

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7850 +96%

1.761 TFLOPS

Radeon HD 4860

0.896 TFLOPS

Radeon HD 7850

VS

Radeon HD 4860

Graphics Card

Mar 2012

Release Date

Sep 2009

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

750 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

96.00GB/s

Render Config

16

Compute Units

8

-

1024

Shading Units

640

64

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

27.52 GPixel/s

Pixel Rate

11.20 GPixel/s

55.04 GTexel/s

Texture Rate

22.40 GTexel/s

-

1.761 TFLOPS

FP32 (float)

896.0 GFLOPS

110.1 GFLOPS

FP64 (double)

179.2 GFLOPS

Board Design

130W

TDP

130W

300 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

RV790

Pitcairn PRO (215-0828062)

GPU Variant

RV790 GT

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.959 billion

212 mm²

Die Size

282 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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