AMD Radeon HD 7990 vs ATI Radeon HD 2900 XT

Comparative analysis of AMD Radeon HD 7990 and ATI Radeon HD 2900 XT 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, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score.

 

Differences

Reasons to consider the AMD Radeon HD 7990

  • Videocard is newer: launch date 5 year(s) 11 month(s) later
  • Around 28% higher core clock speed: 950 MHz vs 743 MHz
  • 179x more texture fill rate: 2x 128.0 GTexel / s billion / sec vs 11.89 GTexel / s
  • 12.8x more pipelines: 2x 2048 vs 320
  • 17.2x better floating-point performance: 2x 4,096 gflops vs 475.5 gflops
  • A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 80 nm
  • 12x more maximum memory size: 2x 3 GB vs 512 MB
  • 3.6x more memory clock speed: 6000 MHz vs 1656 MHz
  • 8.4x better performance in PassMark - G3D Mark: 5566 vs 660
  • Around 93% better performance in PassMark - G2D Mark: 766 vs 397
Specifications (specs)
Launch date 24 April 2013 vs 14 May 2007
Core clock speed 950 MHz vs 743 MHz
Texture fill rate 2x 128.0 GTexel / s billion / sec vs 11.89 GTexel / s
Pipelines 2x 2048 vs 320
Floating-point performance 2x 4,096 gflops vs 475.5 gflops
Manufacturing process technology 28 nm vs 80 nm
Maximum memory size 2x 3 GB vs 512 MB
Memory clock speed 6000 MHz vs 1656 MHz
Benchmarks
PassMark - G3D Mark 5566 vs 660
PassMark - G2D Mark 766 vs 397

Reasons to consider the ATI Radeon HD 2900 XT

  • Around 74% lower typical power consumption: 215 Watt vs 375 Watt
Thermal Design Power (TDP) 215 Watt vs 375 Watt

Compare benchmarks

GPU 1: AMD Radeon HD 7990
GPU 2: ATI Radeon HD 2900 XT

PassMark - G3D Mark
GPU 1
GPU 2
5566
660
PassMark - G2D Mark
GPU 1
GPU 2
766
397
Name AMD Radeon HD 7990 ATI Radeon HD 2900 XT
PassMark - G3D Mark 5566 660
PassMark - G2D Mark 766 397
CompuBench 1.5 Desktop - Face Detection (mPixels/s) 88.665
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) 1753.494
CompuBench 1.5 Desktop - T-Rex (Frames/s) 8.437
CompuBench 1.5 Desktop - Video Composition (Frames/s) 88.328
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) 434.598
GFXBench 4.0 - Car Chase Offscreen (Frames) 6689
GFXBench 4.0 - Manhattan (Frames) 3712
GFXBench 4.0 - T-Rex (Frames) 3356
GFXBench 4.0 - Car Chase Offscreen (Fps) 6689
GFXBench 4.0 - Manhattan (Fps) 3712
GFXBench 4.0 - T-Rex (Fps) 3356
3DMark Fire Strike - Graphics Score 0

Compare specifications (specs)

AMD Radeon HD 7990 ATI Radeon HD 2900 XT

Essentials

Architecture GCN 1.0 TeraScale
Code name Malta R600
Design AMD Radeon HD 7000 Series
Launch date 24 April 2013 14 May 2007
Launch price (MSRP) $999 $399
Place in performance rating 410 377
Price now $1,126.99
Type Desktop Desktop
Value for money (0-100) 7.87

Technical info

Boost clock speed 1000 MHz
Core clock speed 950 MHz 743 MHz
Floating-point performance 2x 4,096 gflops 475.5 gflops
Manufacturing process technology 28 nm 80 nm
Pipelines 2x 2048 320
Texture fill rate 2x 128.0 GTexel / s billion / sec 11.89 GTexel / s
Thermal Design Power (TDP) 375 Watt 215 Watt
Transistor count 4,313 million 720 million

Video outputs and ports

Display Connectors 1x DVI, 4x mini-DisplayPort 2x DVI, 1x S-Video
DisplayPort support
Dual-link DVI support
VGA

Compatibility, dimensions and requirements

Interface PCIe 3.0 x16 PCIe 1.0 x16
Length 307 mm 241 mm
Supplementary power connectors 2x 8-pin 1x 6-pin + 1x 8-pin

API support

DirectX 11.2 10.0
OpenGL 4.5 3.3

Memory

Maximum RAM amount 2x 3 GB 512 MB
Memory bandwidth 2x 288.0 GB / s 106.0 GB / s
Memory bus width 2x 384 Bit 512 Bit
Memory clock speed 6000 MHz 1656 MHz
Memory type GDDR5 GDDR3