ATI Radeon HD 3850 X2 vs AMD Radeon HD 8670 OEM

VS

ATI Radeon HD 3850 X2 AMD Radeon HD 8670 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 X2 and 2GB VRAM Radeon HD 8670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8670 OEM 's Advantages

Released 4 years and 9 months late

Boost Clock1050MHz

Larger VRAM bandwidth (73.60GB/s vs 52.99GB/s)

64 additional rendering cores

Lower TDP (75W vs 140W)

Score

Benchmark

FP32 (float)

Radeon HD 3850 X2

0.428 TFLOPS

Radeon HD 8670 OEM +88%

0.806 TFLOPS

Radeon HD 3850 X2

VS

Radeon HD 8670 OEM

Graphics Card

Apr 2008

Release Date

Jan 2013

Radeon R600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

828 MHz

Memory Clock

1150 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

128bit

52.99GB/s

Bandwidth

73.60GB/s

Render Config

-

SM Count

-

4

Compute Units

6

320

Shading Units

384

16

TMUs

24

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

Theoretical Performance

10.70 GPixel/s

Pixel Rate

8.400 GPixel/s

10.70 GTexel/s

Texture Rate

25.20 GTexel/s

-

FP16 (half)

-

428.2 GFLOPS

FP32 (float)

806.4 GFLOPS

85.63 GFLOPS

FP64 (double)

50.40 GFLOPS

Graphics Processor

RV670

GPU Name

Oland

RV670 PRO (215-0708003)

GPU Variant

Oland XT (215-0837000)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

0.95 billion

192 mm²

Die Size

77 mm²

Board Design

140W

TDP

75W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

-

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

4.1

Shader Model

5.1

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