Home GPU Comparison ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8400 SE

ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce 8400 SE

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 128MB VRAM GeForce 8400 SE 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
More VRAM (512GB vs 128GB)
Larger VRAM bandwidth (72.06GB/s vs 6.400GB/s)
304 additional rendering cores
NVIDIA GeForce 8400 SE 's Advantages
Lower TDP (50W vs 106W)

Score

Benchmark

FP32 (float)
Radeon HD 3870 Mac Edition +1613%
0.497 TFLOPS
GeForce 8400 SE
0.029 TFLOPS
VS

Graphics Card

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

Clock Speeds

-
-
-
-
-
-
1126 MHz
Memory Clock
400 MHz

Memory

512MB
Memory Size
128MB
GDDR4
Memory Type
DDR2
256bit
Memory Bus
64bit
72.06GB/s
Bandwidth
6.400GB/s

Render Config

4
Compute Units
-
-
SM Count
2
320
Shading Units
16
16
TMUs
8
16
ROPs
4
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
16 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
1.836 GPixel/s
12.43 GTexel/s
Texture Rate
3.672 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
29.38 GFLOPS
99.46 GFLOPS
FP64 (double)
-

Board Design

106W
TDP
50W
300 W
Suggested PSU
250 W
2x DVI 1x S-Video
Outputs
1x DVI 1x VGA 1x S-Video
1x 6-pin
Power Connectors
None

Graphics Processor

RV670
GPU Name
G86S
RV670 XT (215-0708005)
GPU Variant
-
TeraScale
Architecture
Tesla
TSMC
Foundry
TSMC
55 nm
Process Size
80 nm
0.666 billion
Transistors
0.21 billion
192 mm²
Die Size
127 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
N/A
Vulkan
N/A
-
CUDA
1.1
4.1
Shader Model
4.0

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