ATI Radeon HD 3850 X2 vs ATI Radeon HD 2900 PRO

VS

ATI Radeon HD 3850 X2 ATI Radeon HD 2900 PRO

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3850 X2 and 512MB VRAM Radeon HD 2900 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3850 X2 's Advantages

Larger VRAM bandwidth (52.99GB/s vs 51.20GB/s)

Lower TDP (140W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 3850 X2 +11%

0.428 TFLOPS

Radeon HD 2900 PRO

0.384 TFLOPS

Radeon HD 3850 X2

VS

Radeon HD 2900 PRO

Graphics Card

Apr 2008

Release Date

Dec 2007

Radeon R600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

828 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

256bit

Memory Bus

256bit

52.99GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

4

Compute Units

4

320

Shading Units

320

16

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

-

256 KB

L2 Cache

128 KB

Theoretical Performance

10.70 GPixel/s

Pixel Rate

9.600 GPixel/s

10.70 GTexel/s

Texture Rate

9.600 GTexel/s

-

FP16 (half)

-

428.2 GFLOPS

FP32 (float)

384.0 GFLOPS

85.63 GFLOPS

FP64 (double)

-

Graphics Processor

RV670

GPU Name

R600

RV670 PRO (215-0708003)

GPU Variant

R600 PRO (215RGMDKA13FG)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.666 billion

Transistors

0.72 billion

192 mm²

Die Size

420 mm²

Board Design

140W

TDP

200W

300 W

Suggested PSU

550 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 8-pin

Graphics Features

10.1 (10_1)

DirectX

10.0 (10_0)

3.3 (full) 4.0 (partial)

OpenGL

3.3 (full) 4.0 (partial)

N/A

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

4.0

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