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GPU Comparison
NVIDIA A40 PCIe vs ATI Radeon HD 4855
NVIDIA A40 PCIe vs ATI Radeon HD 4855
VS
NVIDIA A40 PCIe
ATI Radeon HD 4855
We compared two Desktop platform GPUs: 48GB VRAM A40 PCIe and 512MB VRAM Radeon HD 4855 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA A40 PCIe 's Advantages
Released 10 years and 9 months late
Boost Clock1740MHz
Larger VRAM bandwidth (695.8GB/s vs 115.2GB/s)
10112 additional rendering cores
ATI Radeon HD 4855 's Advantages
Lower TDP (110W vs 300W)
Score
Benchmark
FP32 (float)
A40 PCIe
+4984%
37.42 TFLOPS
Radeon HD 4855
0.736 TFLOPS
A40 PCIe
VS
Radeon HD 4855
Graphics Card
Oct 2020
Release Date
Jan 2010
Tesla
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1305 MHz
Base Clock
-
1740 MHz
Boost Clock
-
1812 MHz
Memory Clock
900 MHz
Memory
48GB
Memory Size
512MB
GDDR6
Memory Type
GDDR5
384bit
Memory Bus
256bit
695.8GB/s
Bandwidth
115.2GB/s
Render Config
84
SM Count
-
-
Compute Units
8
10752
Shading Units
640
336
TMUs
32
112
ROPs
16
336
Tensor Cores
-
84
RT Cores
-
128 KB (per SM)
L1 Cache
16 KB (per CU)
6 MB
L2 Cache
256 KB
Theoretical Performance
194.9 GPixel/s
Pixel Rate
9.200 GPixel/s
584.6 GTexel/s
Texture Rate
18.40 GTexel/s
37.42 TFLOPS
FP16 (half)
-
37.42 TFLOPS
FP32 (float)
736.0 GFLOPS
584.6 GFLOPS
FP64 (double)
147.2 GFLOPS
Graphics Processor
GA102
GPU Name
RV770
-
GPU Variant
RV770 PRO (215-0669065)
Ampere
Architecture
TeraScale
Samsung
Foundry
TSMC
8 nm
Process Size
55 nm
28.3 billion
Transistors
0.956 billion
628 mm²
Die Size
256 mm²
Board Design
300W
TDP
110W
700 W
Suggested PSU
300 W
3x DisplayPort 1.4a
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
8-pin EPS
Power Connectors
1x 6-pin
Graphics Features
12 Ultimate (12_2)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.3
Vulkan
N/A
8.6
CUDA
-
6.6
Shader Model
4.1
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