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GPU Comparison
NVIDIA GeForce GT 620 vs AMD Radeon HD 8990 OEM
NVIDIA GeForce GT 620 vs AMD Radeon HD 8990 OEM
VS
NVIDIA GeForce GT 620
AMD Radeon HD 8990 OEM
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 620 and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 620 's Advantages
Lower TDP (49W vs 375W)
AMD Radeon HD 8990 OEM 's Advantages
Released 11 months late
Boost Clock1000MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (288.0GB/s vs 14.40GB/s)
1952 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 620
0.269 TFLOPS
Radeon HD 8990 OEM
+1422%
4.096 TFLOPS
GeForce GT 620
VS
Radeon HD 8990 OEM
Graphics Card
May 2012
Release Date
Apr 2013
GeForce 600
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
950 MHz
-
Boost Clock
1000 MHz
900 MHz
Memory Clock
1500 MHz
Memory
1024MB
Memory Size
3GB
DDR3
Memory Type
GDDR5
64bit
Memory Bus
384bit
14.40GB/s
Bandwidth
288.0GB/s
Render Config
2
SM Count
-
-
Compute Units
32
96
Shading Units
2048
16
TMUs
128
4
ROPs
32
-
Tensor Cores
-
-
RT Cores
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
128 KB
L2 Cache
768 KB
Theoretical Performance
2.800 GPixel/s
Pixel Rate
32.00 GPixel/s
11.20 GTexel/s
Texture Rate
128.0 GTexel/s
-
FP16 (half)
-
268.8 GFLOPS
FP32 (float)
4.096 TFLOPS
22.40 GFLOPS
FP64 (double)
1024 GFLOPS
Graphics Processor
GF108
GPU Name
Malta
GF108-100-KB-A1
GPU Variant
Malta XT (215-0849026)
Fermi
Architecture
GCN 1.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
0.585 billion
Transistors
4.313 billion
116 mm²
Die Size
365 mm²
Board Design
49W
TDP
375W
200 W
Suggested PSU
750 W
1x DVI 1x HDMI 1.3a 1x VGA
Outputs
1x DVI 4x mini-DisplayPort 1.2
None
Power Connectors
2x 8-pin
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
1.1
OpenCL
1.2
N/A
Vulkan
1.2
2.1
CUDA
-
5.1
Shader Model
5.1
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