AMD Radeon HD 6850 vs ATI Radeon HD 4770

VS

AMD Radeon HD 6850

ATI Radeon HD 4770

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Released 1 years and 6 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 51.20GB/s)

320 additional rendering cores

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +55%

1.488 TFLOPS

Radeon HD 4770

0.96 TFLOPS

Radeon HD 6850

VS

Radeon HD 4770

Graphics Card

Oct 2010

Release Date

Apr 2009

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

51.20GB/s

Render Config

12

Compute Units

8

-

960

Shading Units

640

48

TMUs

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

12.00 GPixel/s

37.20 GTexel/s

Texture Rate

24.00 GTexel/s

-

1488 GFLOPS

FP32 (float)

960.0 GFLOPS

-

FP64 (double)

192.0 GFLOPS

Board Design

127W

TDP

80W

300 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

RV740

Barts PRO (215-0798006)

GPU Variant

RV740 XT (215-0727019)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.826 billion

255 mm²

Die Size

137 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon HD 6850 vs ATI FirePro 2270 PCIe x1

2

AMD Radeon HD 6850 vs NVIDIA GeForce RTX 3070 6144 SP

3

AMD Radeon HD 6850 vs ATI Radeon X1950 XTX Uber Edition

4

AMD Radeon HD 6850 vs NVIDIA GeForce GT 420 OEM

5

AMD Radeon HD 6850 vs NVIDIA GeForce GT 220

6

AMD Radeon HD 6850 vs NVIDIA GeForce 405 OEM

7

AMD Radeon HD 6850 vs ATI Radeon HD 4870 Mac Edition

8

AMD Radeon HD 6850 vs NVIDIA GeForce RTX 4070

9

AMD Radeon HD 6850 vs NVIDIA GeForce RTX 4080 16 GB

10

AMD Radeon HD 6850 vs NVIDIA GeForce GTX 570 Rev. 2

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU