Home GPU Comparison NVIDIA GeForce GT 630 vs AMD Radeon HD 7990

NVIDIA GeForce GT 630 vs AMD Radeon HD 7990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 630 and 3GB VRAM Radeon HD 7990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 630 's Advantages
Lower TDP (65W vs 375W)
AMD Radeon HD 7990 's Advantages
Released 11 months late
Boost Clock1000MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.0GB/s vs 28.80GB/s)
1952 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 630
0.311 TFLOPS
Radeon HD 7990 +1217%
4.096 TFLOPS
VS

Graphics Card

May 2012
Release Date
Apr 2013
GeForce 600
Generation
Southern 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
128bit
Memory Bus
384bit
28.80GB/s
Bandwidth
288.0GB/s

Render Config

-
Compute Units
32
2
SM Count
-
96
Shading Units
2048
16
TMUs
128
4
ROPs
32
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
768 KB
-
-
-

Theoretical Performance

3.240 GPixel/s
Pixel Rate
32.00 GPixel/s
12.96 GTexel/s
Texture Rate
128.0 GTexel/s
-
-
-
311.0 GFLOPS
FP32 (float)
4.096 TFLOPS
25.92 GFLOPS
FP64 (double)
1024 GFLOPS

Board Design

65W
TDP
375W
250 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 Processor

GF108
GPU Name
Malta
GF108-400-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

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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