Home GPU Comparison NVIDIA GeForce GT 640 vs ATI Radeon HD 5770 Mac Edition

NVIDIA GeForce GT 640 vs ATI Radeon HD 5770 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1024MB VRAM Radeon HD 5770 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages
Released 1 years and 11 months late
More VRAM (2GB vs 1024GB)
Lower TDP (65W vs 108W)
ATI Radeon HD 5770 Mac Edition 's Advantages
Larger VRAM bandwidth (76.48GB/s vs 28.51GB/s)
416 additional rendering cores

Score

Benchmark

FP32 (float)
GeForce GT 640
0.693 TFLOPS
Radeon HD 5770 Mac Edition +96%
1.36 TFLOPS
VS

Graphics Card

Jun 2012
Release Date
Jul 2010
GeForce 600
Generation
Evergreen
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
891 MHz
Memory Clock
1195 MHz

Memory

2GB
Memory Size
1024MB
DDR3
Memory Type
GDDR5
128bit
Memory Bus
128bit
28.51GB/s
Bandwidth
76.48GB/s

Render Config

-
Compute Units
10
-
-
-
384
Shading Units
800
32
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
8 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

7.216 GPixel/s
Pixel Rate
13.60 GPixel/s
28.86 GTexel/s
Texture Rate
34.00 GTexel/s
-
-
-
692.7 GFLOPS
FP32 (float)
1360 GFLOPS
28.86 GFLOPS
FP64 (double)
-

Board Design

65W
TDP
108W
250 W
Suggested PSU
300 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x DisplayPort 1.1
None
Power Connectors
1x 6-pin

Graphics Processor

GK107
GPU Name
Juniper
GK107-300-A2
GPU Variant
Juniper XT (215-0754013)
Kepler
Architecture
TeraScale 2
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
1.27 billion
Transistors
1.04 billion
118 mm²
Die Size
166 mm²

Graphics Features

12 (11_0)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
3.0
OpenCL
1.2
1.1
Vulkan
N/A
3.0
CUDA
-
5.1
Shader Model
5.0

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