ATI Radeon HD 4870 vs NVIDIA GeForce 7900 GTX

Comparative analysis of ATI Radeon HD 4870 and NVIDIA GeForce 7900 GTX videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. 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 Radeon HD 4870

  • Videocard is newer: launch date 2 year(s) 3 month(s) later
  • Around 15% higher core clock speed: 750 MHz vs 650 MHz
  • Around 92% higher texture fill rate: 30 GTexel / s vs 15.6 GTexel / s
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 55 nm vs 90 nm
  • 2.3x more memory clock speed: 3600 MHz vs 1600 MHz
  • 3.5x better performance in PassMark - G3D Mark: 1376 vs 388
  • 3.3x better performance in GFXBench 4.0 - T-Rex (Frames): 3346 vs 1015
  • 3.3x better performance in GFXBench 4.0 - T-Rex (Fps): 3346 vs 1015
Specifications (specs)
Launch date 25 June 2008 vs 9 March 2006
Core clock speed 750 MHz vs 650 MHz
Texture fill rate 30 GTexel / s vs 15.6 GTexel / s
Manufacturing process technology 55 nm vs 90 nm
Memory clock speed 3600 MHz vs 1600 MHz
Benchmarks
PassMark - G3D Mark 1376 vs 388
GFXBench 4.0 - T-Rex (Frames) 3346 vs 1015
GFXBench 4.0 - T-Rex (Fps) 3346 vs 1015

Reasons to consider the NVIDIA GeForce 7900 GTX

  • Around 79% lower typical power consumption: 84 Watt vs 150 Watt
  • 3.8x better performance in PassMark - G2D Mark: 165 vs 44
Specifications (specs)
Thermal Design Power (TDP) 84 Watt vs 150 Watt
Benchmarks
PassMark - G2D Mark 165 vs 44

Compare benchmarks

GPU 1: ATI Radeon HD 4870
GPU 2: NVIDIA GeForce 7900 GTX

PassMark - G3D Mark
GPU 1
GPU 2
1376
388
PassMark - G2D Mark
GPU 1
GPU 2
44
165
GFXBench 4.0 - T-Rex (Frames)
GPU 1
GPU 2
3346
1015
GFXBench 4.0 - T-Rex (Fps)
GPU 1
GPU 2
3346
1015
Name ATI Radeon HD 4870 NVIDIA GeForce 7900 GTX
PassMark - G3D Mark 1376 388
PassMark - G2D Mark 44 165
GFXBench 4.0 - T-Rex (Frames) 3346 1015
GFXBench 4.0 - T-Rex (Fps) 3346 1015

Compare specifications (specs)

ATI Radeon HD 4870 NVIDIA GeForce 7900 GTX

Essentials

Architecture TeraScale Curie
Code name RV770 G71
Launch date 25 June 2008 9 March 2006
Launch price (MSRP) $299
Place in performance rating 1330 1332
Type Desktop Desktop

Technical info

Core clock speed 750 MHz 650 MHz
Floating-point performance 1,200.0 gflops
Manufacturing process technology 55 nm 90 nm
Pipelines 800
Texture fill rate 30 GTexel / s 15.6 GTexel / s
Thermal Design Power (TDP) 150 Watt 84 Watt
Transistor count 956 million 278 million

Video outputs and ports

Display Connectors 2x DVI, 1x S-Video 2x DVI, 1x S-Video

Compatibility, dimensions and requirements

Interface PCIe 2.0 x16 PCIe 1.0 x16
Length 250 mm
Supplementary power connectors 2x 6-pin 1x 6-pin

API support

DirectX 10.1 9.0c
OpenGL 3.3 2.1

Memory

Maximum RAM amount 512 MB 512 MB
Memory bandwidth 115.2 GB / s 51.2 GB / s
Memory bus width 256 Bit 256 Bit
Memory clock speed 3600 MHz 1600 MHz
Memory type GDDR5 GDDR3