Home GPU Comparison ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8800 GTS 320

ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 320MB VRAM GeForce 8800 GTS 320 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 4 months late
More VRAM (512GB vs 320GB)
Larger VRAM bandwidth (72.06GB/s vs 63.36GB/s)
224 additional rendering cores
Lower TDP (106W vs 143W)

Score

Benchmark

FP32 (float)
Radeon HD 3870 Mac Edition +117%
0.497 TFLOPS
GeForce 8800 GTS 320
0.228 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
Feb 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
792 MHz

Memory

512MB
Memory Size
320MB
GDDR4
Memory Type
GDDR3
256bit
Memory Bus
320bit
72.06GB/s
Bandwidth
63.36GB/s

Render Config

4
Compute Units
-
-
SM Count
12
320
Shading Units
96
16
TMUs
24
16
ROPs
20
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
80 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
10.26 GPixel/s
12.43 GTexel/s
Texture Rate
24.62 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
228.1 GFLOPS
99.46 GFLOPS
FP64 (double)
-

Board Design

106W
TDP
143W
300 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
1x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

RV670
GPU Name
G80
RV670 XT (215-0708005)
GPU Variant
G80-100-K0-A2
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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