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GPU Comparison
NVIDIA GeForce GTX 490 vs ATI Radeon HD 3870 X2
NVIDIA GeForce GTX 490 vs ATI Radeon HD 3870 X2
VS
NVIDIA GeForce GTX 490
ATI Radeon HD 3870 X2
We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 490 's Advantages
More VRAM (1536GB vs 512GB)
Larger VRAM bandwidth (164.0GB/s vs 57.66GB/s)
160 additional rendering cores
ATI Radeon HD 3870 X2 's Advantages
Lower TDP (165W vs 365W)
Score
Benchmark
FP32 (float)
GeForce GTX 490
+120%
1.166 TFLOPS
Radeon HD 3870 X2
0.528 TFLOPS
GeForce GTX 490
VS
Radeon HD 3870 X2
Graphics Card
Unknown
Release Date
Jan 2008
GeForce 400
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
854 MHz
Memory Clock
901 MHz
Memory
1536MB
Memory Size
512MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
256bit
164.0GB/s
Bandwidth
57.66GB/s
Render Config
15
SM Count
-
-
Compute Units
4
480
Shading Units
320
60
TMUs
16
48
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SM)
L1 Cache
-
768 KB
L2 Cache
256 KB
Theoretical Performance
18.24 GPixel/s
Pixel Rate
13.20 GPixel/s
36.48 GTexel/s
Texture Rate
13.20 GTexel/s
-
FP16 (half)
-
1166 GFLOPS
FP32 (float)
528.0 GFLOPS
145.8 GFLOPS
FP64 (double)
105.6 GFLOPS
Graphics Processor
GF100
GPU Name
R680
GF100-375-A3
GPU Variant
R680 XT (215-0708017)
Fermi
Architecture
TeraScale
TSMC
Foundry
TSMC
40 nm
Process Size
55 nm
3.1 billion
Transistors
0.666 billion
529 mm²
Die Size
192 mm²
Board Design
365W
TDP
165W
750 W
Suggested PSU
450 W
3x DVI 1x mini-DisplayPort
Outputs
2x DVI 1x S-Video
2x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3 (full) 4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
2.0
CUDA
-
5.1
Shader Model
4.1
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