AMD Radeon HD 6870 vs ATI Radeon HD 3850

VS

AMD Radeon HD 6870

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 's Advantages

Released 2 years and 11 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 53.12GB/s)

800 additional rendering cores

ATI Radeon HD 3850 's Advantages

Lower TDP (75W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +371%

2.016 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon HD 6870

VS

Radeon HD 3850

Graphics Card

Oct 2010

Release Date

Nov 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

830 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

53.12GB/s

Render Config

14

Compute Units

4

-

1120

Shading Units

320

56

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

10.69 GPixel/s

50.40 GTexel/s

Texture Rate

10.69 GTexel/s

-

2.016 TFLOPS

FP32 (float)

427.5 GFLOPS

-

FP64 (double)

85.50 GFLOPS

Board Design

151W

TDP

75W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Barts

GPU Name

RV670

Barts XT (215-0798000)

GPU Variant

RV670 PRO (215-0708003)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.666 billion

255 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon HD 6870 vs NVIDIA CMP 70HX

2

AMD Radeon HD 6870 vs NVIDIA GeForce GT 430 PCI

3

AMD Radeon HD 6870 vs AMD Radeon R5 340X OEM

4

AMD Radeon HD 6870 vs AMD FireStream 9170

5

AMD Radeon HD 6870 vs ATI Radeon X1650 AGP

6

AMD Radeon HD 6870 vs AMD FirePro S9100

7

AMD Radeon HD 6870 vs NVIDIA GeForce RTX 4010

8

AMD Radeon HD 6870 vs NVIDIA P104 101

9

AMD Radeon HD 6870 vs NVIDIA GeForce GT 720

10

AMD Radeon HD 6870 vs NVIDIA RTX A5000-12Q

Related News

1

AMD's Thunderous Strike: Ryzen 9 9950X3D Performance Scores Revealed for the First Time!

2

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

3

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

4

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

5

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

6

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

7

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

8

CXMT Reportedly Achieves 80% Yield in DDR5 Production

9

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

10

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