AMD Radeon HD 6970 X2 vs NVIDIA GeForce GT 440 Mac Edition
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 and 1024MB VRAM GeForce GT 440 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6970 X2 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (176.0GB/s vs 21.34GB/s)
1440 additional rendering cores
NVIDIA GeForce GT 440 Mac Edition 's Advantages
Lower TDP (65W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6970 X2
+769%
2.703 TFLOPS
GeForce GT 440 Mac Edition
0.311 TFLOPS
Graphics Card
Unknown
Release Date
Feb 2011
Northern Islands
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
-
-
-
-
-
-
1375 MHz
Memory Clock
667 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
176.0GB/s
Bandwidth
21.34GB/s
Render Config
24
Compute Units
-
-
SM Count
2
1536
Shading Units
96
96
TMUs
16
32
ROPs
4
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
64 KB (per SM)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
28.16 GPixel/s
Pixel Rate
3.240 GPixel/s
84.48 GTexel/s
Texture Rate
12.96 GTexel/s
-
-
-
2.703 TFLOPS
FP32 (float)
311.0 GFLOPS
-
FP64 (double)
25.92 GFLOPS
Board Design
375W
TDP
65W
750 W
Suggested PSU
250 W
2x DVI
1x HDMI 1.4a
2x mini-DisplayPort 1.2
Outputs
1x DVI
1x HDMI 1.3a
1x VGA
3x 8-pin
Power Connectors
None
Graphics Processor
Antilles
GPU Name
GF108
Antilles XT
(215-0807027)
GPU Variant
GF108-400-A1
TeraScale 3
Architecture
Fermi
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.64 billion
Transistors
0.585 billion
389 mm²
Die Size
116 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
5.0
Shader Model
5.1
