Home GPU Comparison NVIDIA GeForce 8800 Ultra vs AMD Radeon HD 6390

NVIDIA GeForce 8800 Ultra vs AMD Radeon HD 6390

We compared two Desktop platform GPUs: 768MB VRAM GeForce 8800 Ultra and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8800 Ultra 's Advantages
Larger VRAM bandwidth (103.7GB/s vs 16.00GB/s)
AMD Radeon HD 6390 's Advantages
Released 4 years and 2 months late
More VRAM (1024GB vs 768GB)
192 additional rendering cores
Lower TDP (39W vs 171W)

Score

Benchmark

FP32 (float)
GeForce 8800 Ultra +9%
0.387 TFLOPS
Radeon HD 6390
0.352 TFLOPS
VS

Graphics Card

May 2007
Release Date
Jul 2011
GeForce 8
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
Base Clock
-
-
Boost Clock
-
1080 MHz
Memory Clock
500 MHz

Memory

768MB
Memory Size
1024MB
GDDR3
Memory Type
DDR2
384bit
Memory Bus
128bit
103.7GB/s
Bandwidth
16.00GB/s

Render Config

16
SM Count
-
-
Compute Units
4
128
Shading Units
320
32
TMUs
16
24
ROPs
8
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
8 KB (per CU)
96 KB
L2 Cache
256 KB

Theoretical Performance

14.69 GPixel/s
Pixel Rate
4.400 GPixel/s
39.17 GTexel/s
Texture Rate
8.800 GTexel/s
-
FP16 (half)
-
387.1 GFLOPS
FP32 (float)
352.0 GFLOPS
-
FP64 (double)
-

Graphics Processor

G80
GPU Name
Redwood
G80-450-A3
GPU Variant
Redwood LE
Tesla
Architecture
TeraScale 2
TSMC
Foundry
TSMC
90 nm
Process Size
40 nm
0.681 billion
Transistors
0.627 billion
484 mm²
Die Size
104 mm²

Board Design

171W
TDP
39W
450 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 6-pin
Power Connectors
None

Graphics Features

11.1 (10_0)
DirectX
11.2 (11_0)
3.3
OpenGL
4.4
1.1 (1.0)
OpenCL
1.2
N/A
Vulkan
N/A
1.0
CUDA
-
4.0
Shader Model
5.0

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