ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GTS 250M

Table of Contents

Graphics Processor

GPU model M88 GT215
Architecture TeraScale Tesla 2.0
Foundry TSMC TSMC
Manufacturing process 55 nm 40 nm
Number of transistors 666 million 727 million
Die size 192 mm² 144 mm²
GPU variant N10E-GE-A2

Mobile graphics

Release date Jun 4th, 2008 Jun 15th, 2009
Generation M8x (Mobility HD 3800) GeForce 200M
Production End-of-life End-of-life
Interface PCIe 2.0 x16 PCIe 2.0 x16
Reviews 2 in our database
Predecessor M7x GeForce 100M
Successor M9x GeForce 300M

Clocks

GPU clock 660 MHz 500 MHz
Memory clock 850 MHz 1700 Mbps effective 800 MHz 3.2 Gbps effective
Shader clock 1250 MHz

Memory Configuration

Memory size 512 MB 1024 MB
Memory type GDDR3 GDDR5
Memory bus width 256 bit 128 bit
Bandwidth 54.40 GB/s 51.20 GB/s

Render Configuration

Shading units 320 96
TMUs 16 32
ROPs 16 8
Compute units 4
Cache L2 256 KB 64 KB
SM count 12

Performance

Pixel rate 10.56 GPixel/s 4.000 GPixel/s
Texture rate 10.56 GTexel/s 16.00 GTexel/s
FP32 (float) performance 422.4 GFLOPS 240.0 GFLOPS
FP64 (double) performance 84.48 GFLOPS (1:5)

Dimensions & Outputs

TDP 55 W 28 W
Outputs No outputs No outputs

API Support & Features

DirectX 10.1 (10_1) 11.1 (10_1)
OpenGL 3.3 3.3
OpenCL 1.1
Vulkan
Shader model 4.1 4.1
CUDA 1.2

Other Features

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