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GPU Comparison
AMD Radeon HD 6870 X2 vs NVIDIA GeForce 8800 GT
AMD Radeon HD 6870 X2 vs NVIDIA GeForce 8800 GT
VS
AMD Radeon HD 6870 X2
NVIDIA GeForce 8800 GT
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 512MB VRAM GeForce 8800 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 6870 X2 's Advantages
Released 3 years and 9 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (134.4GB/s vs 57.60GB/s)
1008 additional rendering cores
NVIDIA GeForce 8800 GT 's Advantages
Lower TDP (125W vs 300W)
Score
Benchmark
FP32 (float)
Radeon HD 6870 X2
+500%
2.016 TFLOPS
GeForce 8800 GT
0.336 TFLOPS
Radeon HD 6870 X2
VS
GeForce 8800 GT
Graphics Card
Jul 2011
Release Date
Oct 2007
Northern Islands
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1050 MHz
Memory Clock
900 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
256bit
134.4GB/s
Bandwidth
57.60GB/s
Render Config
-
SM Count
14
14
Compute Units
-
1120
Shading Units
112
56
TMUs
56
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
64 KB
Theoretical Performance
28.80 GPixel/s
Pixel Rate
9.600 GPixel/s
50.40 GTexel/s
Texture Rate
33.60 GTexel/s
-
FP16 (half)
-
2.016 TFLOPS
FP32 (float)
336.0 GFLOPS
-
FP64 (double)
-
Graphics Processor
Barts
GPU Name
G92
Barts XT (215-0798000)
GPU Variant
G92-270-A2
TeraScale 2
Architecture
Tesla
TSMC
Foundry
TSMC
40 nm
Process Size
65 nm
1.7 billion
Transistors
0.754 billion
255 mm²
Die Size
324 mm²
Board Design
300W
TDP
125W
700 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
Outputs
2x DVI 1x S-Video
-
Power Connectors
1x 6-pin
Graphics Features
11.2 (11_0)
DirectX
11.1 (10_0)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.1
5.0
Shader Model
4.0
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