Home GPU Comparison ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GTS 450

ATI Radeon HD 3870 Mac Edition vs NVIDIA GeForce GTS 450

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 1024MB VRAM GeForce GTS 450 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
Larger VRAM bandwidth (72.06GB/s vs 57.73GB/s)
128 additional rendering cores
NVIDIA GeForce GTS 450 's Advantages
Released 2 years and 3 months late
More VRAM (1024GB vs 512GB)

Score

Benchmark

FP32 (float)
Radeon HD 3870 Mac Edition
0.497 TFLOPS
GeForce GTS 450 +20%
0.601 TFLOPS
VS

Graphics Card

Jun 2008
Release Date
Sep 2010
Radeon R600
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
1126 MHz
Memory Clock
902 MHz

Memory

512MB
Memory Size
1024MB
GDDR4
Memory Type
GDDR5
256bit
Memory Bus
128bit
72.06GB/s
Bandwidth
57.73GB/s

Render Config

4
Compute Units
-
-
SM Count
4
320
Shading Units
192
16
TMUs
32
16
ROPs
16
-
-
-
-
-
-
-
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
6.264 GPixel/s
12.43 GTexel/s
Texture Rate
25.06 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
601.3 GFLOPS
99.46 GFLOPS
FP64 (double)
50.11 GFLOPS

Board Design

106W
TDP
106W
300 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x mini-HDMI 1.3a
1x 6-pin
Power Connectors
1x 6-pin

Graphics Processor

RV670
GPU Name
GF106
RV670 XT (215-0708005)
GPU Variant
GF106-250-KA-A1
TeraScale
Architecture
Fermi
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.666 billion
Transistors
1.17 billion
192 mm²
Die Size
238 mm²

Graphics Features

10.1 (10_1)
DirectX
12 (11_0)
3.3 (full) 4.0 (partial)
OpenGL
4.6
N/A
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
4.1
Shader Model
5.1

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