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GPU Comparison
ATI Radeon HD 2900 XTX vs NVIDIA GeForce GT 620
ATI Radeon HD 2900 XTX vs NVIDIA GeForce GT 620
VS
ATI Radeon HD 2900 XTX
NVIDIA GeForce GT 620
We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 2900 XTX 's Advantages
Larger VRAM bandwidth (106.0GB/s vs 14.40GB/s)
224 additional rendering cores
NVIDIA GeForce GT 620 's Advantages
More VRAM (1024GB vs 512GB)
Lower TDP (49W vs 240W)
Score
Benchmark
FP32 (float)
Radeon HD 2900 XTX
+76%
0.476 TFLOPS
GeForce GT 620
0.269 TFLOPS
Radeon HD 2900 XTX
VS
GeForce GT 620
Graphics Card
Unknown
Release Date
May 2012
Radeon R600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
828 MHz
Memory Clock
900 MHz
Memory
512MB
Memory Size
1024MB
GDDR3
Memory Type
DDR3
512bit
Memory Bus
64bit
106.0GB/s
Bandwidth
14.40GB/s
Render Config
-
SM Count
2
4
Compute Units
-
320
Shading Units
96
16
TMUs
16
16
ROPs
4
-
Tensor Cores
-
-
RT Cores
-
-
L1 Cache
64 KB (per SM)
256 KB
L2 Cache
128 KB
Theoretical Performance
11.89 GPixel/s
Pixel Rate
2.800 GPixel/s
11.89 GTexel/s
Texture Rate
11.20 GTexel/s
-
FP16 (half)
-
475.5 GFLOPS
FP32 (float)
268.8 GFLOPS
-
FP64 (double)
22.40 GFLOPS
Graphics Processor
R600
GPU Name
GF108
R600 XTX A11 (215RGMDKA11FG)
GPU Variant
GF108-100-KB-A1
TeraScale
Architecture
Fermi
TSMC
Foundry
TSMC
80 nm
Process Size
40 nm
0.72 billion
Transistors
0.585 billion
420 mm²
Die Size
116 mm²
Board Design
240W
TDP
49W
550 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x HDMI 1.3a 1x VGA
2x 6-pin
Power Connectors
None
Graphics Features
10.0 (10_0)
DirectX
12 (11_0)
3.3 (full) 4.0 (partial)
OpenGL
4.6
N/A
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
4.0
Shader Model
5.1
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