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GPU Comparison
ATI Radeon HD 4870 X2 vs NVIDIA GeForce 405 OEM
ATI Radeon HD 4870 X2 vs NVIDIA GeForce 405 OEM
VS
ATI Radeon HD 4870 X2
NVIDIA GeForce 405 OEM
We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 512MB VRAM GeForce 405 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 4870 X2 's Advantages
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (115.2GB/s vs 12.64GB/s)
784 additional rendering cores
NVIDIA GeForce 405 OEM 's Advantages
Released 2 years and 1 months late
Lower TDP (25W vs 286W)
Score
Benchmark
FP32 (float)
Radeon HD 4870 X2
+2566%
1.2 TFLOPS
GeForce 405 OEM
0.045 TFLOPS
Radeon HD 4870 X2
VS
GeForce 405 OEM
Graphics Card
Aug 2008
Release Date
Sep 2010
Radeon R700
Generation
GeForce 400
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
900 MHz
Memory Clock
790 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
64bit
115.2GB/s
Bandwidth
12.64GB/s
Render Config
-
SM Count
2
10
Compute Units
-
800
Shading Units
16
40
TMUs
8
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
256 KB
L2 Cache
32 KB
Theoretical Performance
12.00 GPixel/s
Pixel Rate
2.356 GPixel/s
30.00 GTexel/s
Texture Rate
4.712 GTexel/s
-
FP16 (half)
-
1200 GFLOPS
FP32 (float)
44.86 GFLOPS
240.0 GFLOPS
FP64 (double)
-
Graphics Processor
R700
GPU Name
GT218
R700 XT (215-0669045)
GPU Variant
GT218-300-B1
TeraScale
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
55 nm
Process Size
40 nm
0.956 billion
Transistors
0.26 billion
256 mm²
Die Size
57 mm²
Board Design
286W
TDP
25W
600 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Features
10.1 (10_1)
DirectX
11.1 (10_1)
3.3
OpenGL
3.3
1.1
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.2
4.1
Shader Model
4.1
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