Radeon HD 4890 

Released April, 2009
  • 1 GHz
  • 1 GB GDDR5

Benchmarks Real world tests of the Radeon HD 4890

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon HD 4890
1,535

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4890
3,358.98
Radeon HD 4870
3,353.62
Radeon HD 7770
3,355.14

Sky Diver Factor Data courtesy FutureMark

Radeon HD 4890
2.27

Cloud Gate Factor Data courtesy FutureMark

Radeon HD 4890
14.68

Reviews Word on the street for the Radeon HD 4890

Specifications Full list of technical specs

gpu

GPU brand ATI
GPU name RV790
Market Desktop
Clock speed 1,000 MHz
Is dual GPU No
Reference card ATi Radeon HD 4890 850 MHz 1 GB

raw performance

Shading units 800
Texture mapping units 40
Render output processors 16
Compute units 10
Pixel rate 16 GPixel/s
Texture rate 40 GTexel/s
Floating-point performance 1,600 GFLOPS

memory

Memory clock speed 1,000 MHz
Effective memory clock speed 4,000 MHz
Memory bus 256 bit
Memory 1,024 MB
Memory type GDDR5
Memory bandwidth 128 GB/s

noise and power

TDP 190W
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