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GPU Comparison
NVIDIA GeForce GTX 680 vs ATI Radeon HD 4855
NVIDIA GeForce GTX 680 vs ATI Radeon HD 4855
VS
NVIDIA GeForce GTX 680
ATI Radeon HD 4855
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 680 's Advantages
Released 2 years and 2 months late
Boost Clock1058MHz
Larger VRAM bandwidth (192.3GB/s vs 115.2GB/s)
896 additional rendering cores
ATI Radeon HD 4855 's Advantages
Lower TDP (110W vs 195W)
Score
Benchmark
FP32 (float)
GeForce GTX 680
+341%
3.25 TFLOPS
Radeon HD 4855
0.736 TFLOPS
GeForce GTX 680
VS
Radeon HD 4855
Graphics Card
Mar 2012
Release Date
Jan 2010
GeForce 600
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1006 MHz
Base Clock
-
1058 MHz
Boost Clock
-
1502 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
256bit
192.3GB/s
Bandwidth
115.2GB/s
Render Config
-
SM Count
-
-
Compute Units
8
1536
Shading Units
640
128
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
33.86 GPixel/s
Pixel Rate
9.200 GPixel/s
135.4 GTexel/s
Texture Rate
18.40 GTexel/s
-
FP16 (half)
-
3.250 TFLOPS
FP32 (float)
736.0 GFLOPS
135.4 GFLOPS
FP64 (double)
147.2 GFLOPS
Graphics Processor
GK104
GPU Name
RV770
GK104-400-A2
GPU Variant
RV770 PRO (215-0669065)
Kepler
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
3.54 billion
Transistors
0.956 billion
294 mm²
Die Size
256 mm²
Board Design
195W
TDP
110W
450 W
Suggested PSU
300 W
2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 6-pin
Power Connectors
1x 6-pin
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
4.1
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