Home GPU Comparison ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8800 Ultra

ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8800 Ultra

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages
Released 1 years and 1 months late
192 additional rendering cores
Lower TDP (106W vs 171W)
NVIDIA GeForce 8800 Ultra 's Advantages
More VRAM (768GB vs 512GB)
Larger VRAM bandwidth (103.7GB/s vs 72.06GB/s)

Score

Benchmark

FP32 (float)
Radeon HD 3870 Mac Edition +28%
0.497 TFLOPS
GeForce 8800 Ultra
0.387 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
May 2007
Radeon R600
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16

Clock Speeds

-
-
-
-
-
-
1126 MHz
Memory Clock
1080 MHz

Memory

512MB
Memory Size
768MB
GDDR4
Memory Type
GDDR3
256bit
Memory Bus
384bit
72.06GB/s
Bandwidth
103.7GB/s

Render Config

4
Compute Units
-
-
SM Count
16
320
Shading Units
128
16
TMUs
32
16
ROPs
24
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
96 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
14.69 GPixel/s
12.43 GTexel/s
Texture Rate
39.17 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
387.1 GFLOPS
99.46 GFLOPS
FP64 (double)
-

Board Design

106W
TDP
171W
300 W
Suggested PSU
450 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
2x 6-pin

Graphics Processor

RV670
GPU Name
G80
RV670 XT (215-0708005)
GPU Variant
G80-450-A3
TeraScale
Architecture
Tesla
TSMC
Foundry
TSMC
55 nm
Process Size
90 nm
0.666 billion
Transistors
0.681 billion
192 mm²
Die Size
484 mm²

Graphics Features

10.1 (10_1)
DirectX
11.1 (10_0)
3.3 (full) 4.0 (partial)
OpenGL
3.3
N/A
OpenCL
1.1 (1.0)
N/A
Vulkan
N/A
-
CUDA
1.0
4.1
Shader Model
4.0

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