Home GPU Comparison AMD Radeon HD 7950 Monica BIOS 2 vs NVIDIA GeForce GT 640 OEM

AMD Radeon HD 7950 Monica BIOS 2 vs NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Monica BIOS 2 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 28.51GB/s)
384 additional rendering cores
NVIDIA GeForce GT 640 OEM 's Advantages
Lower TDP (50W vs 85W)

Score

Benchmark

FP32 (float)
Radeon HD 7950 Monica BIOS 2 +100%
1.229 TFLOPS
GeForce GT 640 OEM
0.612 TFLOPS
VS

Graphics Card

Jan 2012
Release Date
Apr 2012
Southern Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

-
-
-
-
-
-
1250 MHz
Memory Clock
891 MHz

Memory

3GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
128bit
240.0GB/s
Bandwidth
28.51GB/s

Render Config

12
Compute Units
-
-
-
-
768
Shading Units
384
48
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

25.60 GPixel/s
Pixel Rate
6.376 GPixel/s
38.40 GTexel/s
Texture Rate
25.50 GTexel/s
-
-
-
1229 GFLOPS
FP32 (float)
612.1 GFLOPS
307.2 GFLOPS
FP64 (double)
25.50 GFLOPS

Board Design

85W
TDP
50W
250 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None

Graphics Processor

Tahiti
GPU Name
GK107
Tahiti PRO (215-0821056)
GPU Variant
GK107-320-A2
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
1.27 billion
352 mm²
Die Size
118 mm²

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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