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GPU Comparison
AMD Radeon HD 7990 vs NVIDIA GeForce GTX 650
AMD Radeon HD 7990 vs NVIDIA GeForce GTX 650
VS
AMD Radeon HD 7990
NVIDIA GeForce GTX 650
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 1024MB VRAM GeForce GTX 650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7990 's Advantages
Released 7 months late
Boost Clock1000MHz
More VRAM (3GB vs 1GB)
Larger VRAM bandwidth (288.0GB/s vs 80.00GB/s)
1664 additional rendering cores
NVIDIA GeForce GTX 650 's Advantages
Lower TDP (65W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 7990
+404%
4.096 TFLOPS
GeForce GTX 650
0.812 TFLOPS
Radeon HD 7990
VS
GeForce GTX 650
Graphics Card
Apr 2013
Release Date
Sep 2012
Southern Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
950 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1500 MHz
Memory Clock
1250 MHz
Memory
3GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
128bit
288.0GB/s
Bandwidth
80.00GB/s
Render Config
-
SM Count
-
32
Compute Units
-
2048
Shading Units
384
128
TMUs
32
32
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
256 KB
Theoretical Performance
32.00 GPixel/s
Pixel Rate
8.464 GPixel/s
128.0 GTexel/s
Texture Rate
33.86 GTexel/s
-
FP16 (half)
-
4.096 TFLOPS
FP32 (float)
812.5 GFLOPS
1024 GFLOPS
FP64 (double)
33.86 GFLOPS
Graphics Processor
Malta
GPU Name
GK107
Malta XT (215-0849026)
GPU Variant
GK107-450-A2
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
1.27 billion
365 mm²
Die Size
118 mm²
Board Design
375W
TDP
65W
750 W
Suggested PSU
250 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
2x DVI 1x mini-HDMI 1.4a
2x 8-pin
Power Connectors
1x 6-pin
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
5.1
Shader Model
5.1
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