ATI Mobility Radeon HD 4870 X2 vs NVIDIA GeForce GTS 450 Rev. 2

Table of Contents

Graphics Processor

GPU model M98 GF116
GPU variant M98 XT (216-0732023) GF116-200-KA-A1
Architecture TeraScale Fermi 2.0
Foundry TSMC TSMC
Manufacturing process 55 nm 40 nm
Number of transistors 956 million 1,170 million
Die size 256 mm² 238 mm²

Mobile graphics

Release date Jan 9th, 2009
Generation M9x (Mobility HD 4800)
Production End-of-life
Interface PCIe 2.0 x16
Reviews 2 in our database
Predecessor M8x
Successor Manhattan

Clocks

GPU clock 550 MHz 783 MHz
Memory clock 700 MHz 2.8 Gbps effective 902 MHz 3.6 Gbps effective
Shader clock 1566 MHz

Memory Configuration

Memory size 1024 MB 1024 MB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 128 bit
Bandwidth 89.60 GB/s 57.73 GB/s

Render Configuration

Shading units 800 192
TMUs 40 32
ROPs 16 16
Compute units 10
Cache L1 16 KB (per CU) 64 KB (per SM)
Cache L2 256 KB 256 KB
SM count 4

Performance

Pixel rate 8.800 GPixel/s 6.264 GPixel/s
Texture rate 22.00 GTexel/s 25.06 GTexel/s
FP32 (float) performance 880.0 GFLOPS 601.3 GFLOPS
FP64 (double) performance 176.0 GFLOPS (1:5) 50.11 GFLOPS (1:12)

Dimensions & Outputs

TDP unknown 106 W
Outputs No outputs 2x DVI1x mini-HDMI
Slot width Dual-slot
Length 210 mm 8.3 inches
Suggested PSU 300 W
Power connectors 1x 6-pin
Board number P1060, P1062

API Support & Features

DirectX 10.1 (10_1) 12 (11_0)
OpenGL 3.3 4.6
OpenCL 1.1 1.1
Vulkan
Shader model 4.1 5.1
CUDA 2.1

Other Features

Graphics Card

Release date Mar 15th, 2011
Generation GeForce 400
Production End-of-life
Interface PCIe 2.0 x16
Reviews 80 in our database
Predecessor GeForce 200
Successor GeForce 500

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