ATI Mobility Radeon HD 4870 vs NVIDIA GeForce 7800 GT

Comparative analysis of ATI Mobility Radeon HD 4870 and NVIDIA GeForce 7800 GT videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

 

Differences

Reasons to consider the ATI Mobility Radeon HD 4870

  • Videocard is newer: launch date 3 year(s) 4 month(s) later
  • Around 38% higher core clock speed: 550 MHz vs 400 MHz
  • 2.8x more texture fill rate: 22 GTexel / s vs 8 GTexel / s
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 55 nm vs 110 nm
  • 2x more maximum memory size: 512 MB vs 256 MB
  • Around 78% higher memory clock speed: 1776 MHz vs 1000 MHz
  • 3x better performance in PassMark - G3D Mark: 720 vs 244
  • Around 52% better performance in PassMark - G2D Mark: 416 vs 273
Specifications (specs)
Launch date 9 January 2009 vs 11 August 2005
Core clock speed 550 MHz vs 400 MHz
Texture fill rate 22 GTexel / s vs 8 GTexel / s
Manufacturing process technology 55 nm vs 110 nm
Maximum memory size 512 MB vs 256 MB
Memory clock speed 1776 MHz vs 1000 MHz
Benchmarks
PassMark - G3D Mark 720 vs 244
PassMark - G2D Mark 416 vs 273

Compare benchmarks

GPU 1: ATI Mobility Radeon HD 4870
GPU 2: NVIDIA GeForce 7800 GT

PassMark - G3D Mark
GPU 1
GPU 2
720
244
PassMark - G2D Mark
GPU 1
GPU 2
416
273
Name ATI Mobility Radeon HD 4870 NVIDIA GeForce 7800 GT
PassMark - G3D Mark 720 244
PassMark - G2D Mark 416 273
GFXBench 4.0 - T-Rex (Frames) 3350
GFXBench 4.0 - T-Rex (Fps) 3350

Compare specifications (specs)

ATI Mobility Radeon HD 4870 NVIDIA GeForce 7800 GT

Essentials

Architecture TeraScale Curie
Code name M98 G70
Launch date 9 January 2009 11 August 2005
Place in performance rating 592 595
Type Laptop Desktop
Launch price (MSRP) $449
Price now $80
Value for money (0-100) 3.16

Technical info

Core clock speed 550 MHz 400 MHz
Floating-point performance 880.0 gflops
Manufacturing process technology 55 nm 110 nm
Pipelines 800
Texture fill rate 22 GTexel / s 8 GTexel / s
Transistor count 956 million 302 million
Thermal Design Power (TDP) 65 Watt

Video outputs and ports

Display Connectors No outputs 2x DVI, 1x S-Video

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 1.0 x16
Laptop size large
Length 226 mm
Supplementary power connectors 1x 6-pin

API support

DirectX 10.1 9.0c
OpenGL 3.3 2.1

Memory

Maximum RAM amount 512 MB 256 MB
Memory bandwidth 56.8 GB / s 32.0 GB / s
Memory bus width 256 Bit 256 Bit
Memory clock speed 1776 MHz 1000 MHz
Memory type GDDR5 GDDR3
Shared memory 0

Technologies

1x Dual-Link/Single-Link DVI
1x Single-Link DVI Support (all display ports have to be supported by the laptop manufacturer)
DisplayPort support up to 2560x1600
HDMI support up to 1920x1080 (both with 7.1 AC3 Audio)
PCI-E 2.0 x16
Powerplay